20396944

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{359}}^1$

素因数の和:487

約数の個数: 40

約数和(自身を含む): 40979520

約数和(自身を除く): 20582576

約数列:

[1, 2, 4, 8, 16, 53, 67, 106, 134, 212, 268, 359, 424, 536, 718, 848, 1072, 1436, 2872, 3551, 5744, 7102, 14204, 19027, 24053, 28408, 38054, 48106, 56816, 76108, 96212, 152216, 192424, 304432, 384848, 1274809, 2549618, 5099236, 10198472, 20396944]

約数ペア:

[(1, 20396944), (2, 10198472), (4, 5099236), (8, 2549618), (16, 1274809), (53, 384848), (67, 304432), (106, 192424), (134, 152216), (212, 96212), (268, 76108), (359, 56816), (424, 48106), (536, 38054), (718, 28408), (848, 24053), (1072, 19027), (1436, 14204), (2872, 7102), (3551, 5744)]