21138468

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{757}}^1$

素因数の和:956

約数の個数: 48

約数和(自身を含む): 53484480

約数和(自身を除く): 32346012

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 179, 358, 537, 716, 757, 1074, 1514, 2148, 2271, 2327, 3028, 4542, 4654, 6981, 9084, 9308, 9841, 13962, 19682, 27924, 29523, 39364, 59046, 118092, 135503, 271006, 406509, 542012, 813018, 1626036, 1761539, 3523078, 5284617, 7046156, 10569234, 21138468]

約数ペア:

[(1, 21138468), (2, 10569234), (3, 7046156), (4, 5284617), (6, 3523078), (12, 1761539), (13, 1626036), (26, 813018), (39, 542012), (52, 406509), (78, 271006), (156, 135503), (179, 118092), (358, 59046), (537, 39364), (716, 29523), (757, 27924), (1074, 19682), (1514, 13962), (2148, 9841), (2271, 9308), (2327, 9084), (3028, 6981), (4542, 4654)]