21492284

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{487}}^1$

素因数の和:578

約数の個数: 48

約数和(自身を含む): 44271360

約数和(自身を除く): 22779076

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 59, 68, 118, 187, 236, 374, 487, 649, 748, 974, 1003, 1298, 1948, 2006, 2596, 4012, 5357, 8279, 10714, 11033, 16558, 21428, 22066, 28733, 33116, 44132, 57466, 91069, 114932, 182138, 316063, 364276, 488461, 632126, 976922, 1264252, 1953844, 5373071, 10746142, 21492284]

約数ペア:

[(1, 21492284), (2, 10746142), (4, 5373071), (11, 1953844), (17, 1264252), (22, 976922), (34, 632126), (44, 488461), (59, 364276), (68, 316063), (118, 182138), (187, 114932), (236, 91069), (374, 57466), (487, 44132), (649, 33116), (748, 28733), (974, 22066), (1003, 21428), (1298, 16558), (1948, 11033), (2006, 10714), (2596, 8279), (4012, 5357)]