19542978

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:169

約数の個数: 128

約数和(自身を含む): 55319040

約数和(自身を除く): 35776062

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 27, 39, 41, 42, 54, 63, 78, 82, 91, 97, 117, 123, 126, 182, 189, 194, 234, 246, 273, 287, 291, 351, 369, 378, 533, 546, 574, 582, 679, 702, 738, 819, 861, 873, 1066, 1107, 1261, 1358, 1599, 1638, 1722, 1746, 2037, 2214, 2457, 2522, 2583, 2619, 3198, 3731, 3783, 3977, 4074, 4797, 4914, 5166, 5238, 6111, 7462, 7566, 7749, 7954, 8827, 9594, 11193, 11349, 11931, 12222, 14391, 15498, 17654, 18333, 22386, 22698, 23862, 26481, 27839, 28782, 33579, 34047, 35793, 36666, 51701, 52962, 55678, 67158, 68094, 71586, 79443, 83517, 100737, 103402, 107379, 155103, 158886, 167034, 201474, 214758, 238329, 250551, 310206, 361907, 465309, 476658, 501102, 723814, 751653, 930618, 1085721, 1395927, 1503306, 2171442, 2791854, 3257163, 6514326, 9771489, 19542978]

約数ペア:

[(1, 19542978), (2, 9771489), (3, 6514326), (6, 3257163), (7, 2791854), (9, 2171442), (13, 1503306), (14, 1395927), (18, 1085721), (21, 930618), (26, 751653), (27, 723814), (39, 501102), (41, 476658), (42, 465309), (54, 361907), (63, 310206), (78, 250551), (82, 238329), (91, 214758), (97, 201474), (117, 167034), (123, 158886), (126, 155103), (182, 107379), (189, 103402), (194, 100737), (234, 83517), (246, 79443), (273, 71586), (287, 68094), (291, 67158), (351, 55678), (369, 52962), (378, 51701), (533, 36666), (546, 35793), (574, 34047), (582, 33579), (679, 28782), (702, 27839), (738, 26481), (819, 23862), (861, 22698), (873, 22386), (1066, 18333), (1107, 17654), (1261, 15498), (1358, 14391), (1599, 12222), (1638, 11931), (1722, 11349), (1746, 11193), (2037, 9594), (2214, 8827), (2457, 7954), (2522, 7749), (2583, 7566), (2619, 7462), (3198, 6111), (3731, 5238), (3783, 5166), (3977, 4914), (4074, 4797)]