20742984

素因数分解:

$2^3\times 3^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{257}}^1$

素因数の和:347

約数の個数: 96

約数和(自身を含む): 60372000

約数和(自身を除く): 39629016

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 36, 38, 57, 59, 72, 76, 114, 118, 152, 171, 177, 228, 236, 257, 342, 354, 456, 472, 514, 531, 684, 708, 771, 1028, 1062, 1121, 1368, 1416, 1542, 2056, 2124, 2242, 2313, 3084, 3363, 4248, 4484, 4626, 4883, 6168, 6726, 8968, 9252, 9766, 10089, 13452, 14649, 15163, 18504, 19532, 20178, 26904, 29298, 30326, 39064, 40356, 43947, 45489, 58596, 60652, 80712, 87894, 90978, 117192, 121304, 136467, 175788, 181956, 272934, 288097, 351576, 363912, 545868, 576194, 864291, 1091736, 1152388, 1728582, 2304776, 2592873, 3457164, 5185746, 6914328, 10371492, 20742984]

約数ペア:

[(1, 20742984), (2, 10371492), (3, 6914328), (4, 5185746), (6, 3457164), (8, 2592873), (9, 2304776), (12, 1728582), (18, 1152388), (19, 1091736), (24, 864291), (36, 576194), (38, 545868), (57, 363912), (59, 351576), (72, 288097), (76, 272934), (114, 181956), (118, 175788), (152, 136467), (171, 121304), (177, 117192), (228, 90978), (236, 87894), (257, 80712), (342, 60652), (354, 58596), (456, 45489), (472, 43947), (514, 40356), (531, 39064), (684, 30326), (708, 29298), (771, 26904), (1028, 20178), (1062, 19532), (1121, 18504), (1368, 15163), (1416, 14649), (1542, 13452), (2056, 10089), (2124, 9766), (2242, 9252), (2313, 8968), (3084, 6726), (3363, 6168), (4248, 4883), (4484, 4626)]