21405364

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 41368320

約数和(自身を除く): 19962956

約数列:

[1, 2, 4, 23, 29, 46, 58, 71, 92, 113, 116, 142, 226, 284, 452, 667, 1334, 1633, 2059, 2599, 2668, 3266, 3277, 4118, 5198, 6532, 6554, 8023, 8236, 10396, 13108, 16046, 32092, 47357, 75371, 94714, 150742, 184529, 189428, 232667, 301484, 369058, 465334, 738116, 930668, 5351341, 10702682, 21405364]

約数ペア:

[(1, 21405364), (2, 10702682), (4, 5351341), (23, 930668), (29, 738116), (46, 465334), (58, 369058), (71, 301484), (92, 232667), (113, 189428), (116, 184529), (142, 150742), (226, 94714), (284, 75371), (452, 47357), (667, 32092), (1334, 16046), (1633, 13108), (2059, 10396), (2599, 8236), (2668, 8023), (3266, 6554), (3277, 6532), (4118, 5198)]