8427678

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{179}}^1$

素因数の和:269

約数の個数: 64

約数和(自身を含む): 20736000

約数和(自身を除く): 12308322

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 59, 114, 118, 133, 177, 179, 266, 354, 358, 399, 413, 537, 798, 826, 1074, 1121, 1239, 1253, 2242, 2478, 2506, 3363, 3401, 3759, 6726, 6802, 7518, 7847, 10203, 10561, 15694, 20406, 21122, 23541, 23807, 31683, 47082, 47614, 63366, 71421, 73927, 142842, 147854, 200659, 221781, 401318, 443562, 601977, 1203954, 1404613, 2809226, 4213839, 8427678]

約数ペア:

[(1, 8427678), (2, 4213839), (3, 2809226), (6, 1404613), (7, 1203954), (14, 601977), (19, 443562), (21, 401318), (38, 221781), (42, 200659), (57, 147854), (59, 142842), (114, 73927), (118, 71421), (133, 63366), (177, 47614), (179, 47082), (266, 31683), (354, 23807), (358, 23541), (399, 21122), (413, 20406), (537, 15694), (798, 10561), (826, 10203), (1074, 7847), (1121, 7518), (1239, 6802), (1253, 6726), (2242, 3759), (2478, 3401), (2506, 3363)]