20217490958

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1\times {\mathrm{317}}^1$

素因数の和:618

約数の個数: 128

約数和(自身を含む): 39247773696

約数和(自身を除く): 19030282738

約数列:

[1, 2, 7, 14, 17, 23, 34, 46, 61, 119, 122, 161, 191, 238, 317, 322, 382, 391, 427, 634, 782, 854, 1037, 1337, 1403, 2074, 2219, 2674, 2737, 2806, 3247, 4393, 4438, 5389, 5474, 6494, 7259, 7291, 8786, 9821, 10778, 11651, 14518, 14582, 19337, 19642, 22729, 23302, 23851, 30751, 37723, 38674, 45458, 47702, 51037, 60547, 61502, 74681, 75446, 81557, 102074, 121094, 123947, 135359, 149362, 163114, 166957, 198067, 247894, 267973, 270718, 328729, 333914, 396134, 423829, 444751, 522767, 535946, 657458, 847658, 867629, 889502, 1029299, 1045534, 1386469, 1392581, 1735258, 1875811, 2058598, 2301103, 2772938, 2785162, 3113257, 3693367, 3751622, 4555541, 4602206, 6226514, 7205093, 7386734, 7560767, 9111082, 9748067, 14410186, 15121534, 19496134, 23673877, 25853569, 31888787, 47347754, 51707138, 52925369, 62787239, 63777574, 84947441, 105850738, 125574478, 165717139, 169894882, 331434278, 439510673, 594632087, 879021346, 1189264174, 1444106497, 2888212994, 10108745479, 20217490958]

約数ペア:

[(1, 20217490958), (2, 10108745479), (7, 2888212994), (14, 1444106497), (17, 1189264174), (23, 879021346), (34, 594632087), (46, 439510673), (61, 331434278), (119, 169894882), (122, 165717139), (161, 125574478), (191, 105850738), (238, 84947441), (317, 63777574), (322, 62787239), (382, 52925369), (391, 51707138), (427, 47347754), (634, 31888787), (782, 25853569), (854, 23673877), (1037, 19496134), (1337, 15121534), (1403, 14410186), (2074, 9748067), (2219, 9111082), (2674, 7560767), (2737, 7386734), (2806, 7205093), (3247, 6226514), (4393, 4602206), (4438, 4555541), (5389, 3751622), (5474, 3693367), (6494, 3113257), (7259, 2785162), (7291, 2772938), (8786, 2301103), (9821, 2058598), (10778, 1875811), (11651, 1735258), (14518, 1392581), (14582, 1386469), (19337, 1045534), (19642, 1029299), (22729, 889502), (23302, 867629), (23851, 847658), (30751, 657458), (37723, 535946), (38674, 522767), (45458, 444751), (47702, 423829), (51037, 396134), (60547, 333914), (61502, 328729), (74681, 270718), (75446, 267973), (81557, 247894), (102074, 198067), (121094, 166957), (123947, 163114), (135359, 149362)]