21807736

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{3911}}^1$

素因数の和:3975

約数の個数: 32

約数和(自身を含む): 44362080

約数和(自身を除く): 22554344

約数列:

[1, 2, 4, 8, 17, 34, 41, 68, 82, 136, 164, 328, 697, 1394, 2788, 3911, 5576, 7822, 15644, 31288, 66487, 132974, 160351, 265948, 320702, 531896, 641404, 1282808, 2725967, 5451934, 10903868, 21807736]

約数ペア:

[(1, 21807736), (2, 10903868), (4, 5451934), (8, 2725967), (17, 1282808), (34, 641404), (41, 531896), (68, 320702), (82, 265948), (136, 160351), (164, 132974), (328, 66487), (697, 31288), (1394, 15644), (2788, 7822), (3911, 5576)]