21305896

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{3821}}^1$

素因数の和:3885

約数の個数: 32

約数和(自身を含む): 43341480

約数和(自身を除く): 22035584

約数列:

[1, 2, 4, 8, 17, 34, 41, 68, 82, 136, 164, 328, 697, 1394, 2788, 3821, 5576, 7642, 15284, 30568, 64957, 129914, 156661, 259828, 313322, 519656, 626644, 1253288, 2663237, 5326474, 10652948, 21305896]

約数ペア:

[(1, 21305896), (2, 10652948), (4, 5326474), (8, 2663237), (17, 1253288), (34, 626644), (41, 519656), (68, 313322), (82, 259828), (136, 156661), (164, 129914), (328, 64957), (697, 30568), (1394, 15284), (2788, 7642), (3821, 5576)]