21065964

素因数分解:

$2^2\times 3^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{911}}^1$

素因数の和:1006

約数の個数: 48

約数和(自身を含む): 51480576

約数和(自身を除く): 30414612

約数列:

[1, 2, 3, 4, 6, 12, 41, 47, 82, 94, 123, 141, 164, 188, 246, 282, 492, 564, 911, 1822, 1927, 2733, 3644, 3854, 5466, 5781, 7708, 10932, 11562, 23124, 37351, 42817, 74702, 85634, 112053, 128451, 149404, 171268, 224106, 256902, 448212, 513804, 1755497, 3510994, 5266491, 7021988, 10532982, 21065964]

約数ペア:

[(1, 21065964), (2, 10532982), (3, 7021988), (4, 5266491), (6, 3510994), (12, 1755497), (41, 513804), (47, 448212), (82, 256902), (94, 224106), (123, 171268), (141, 149404), (164, 128451), (188, 112053), (246, 85634), (282, 74702), (492, 42817), (564, 37351), (911, 23124), (1822, 11562), (1927, 10932), (2733, 7708), (3644, 5781), (3854, 5466)]