20510964

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{18379}}^1$

素因数の和:18420

約数の個数: 36

約数和(自身を含む): 53522560

約数和(自身を除く): 33011596

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 124, 186, 279, 372, 558, 1116, 18379, 36758, 55137, 73516, 110274, 165411, 220548, 330822, 569749, 661644, 1139498, 1709247, 2278996, 3418494, 5127741, 6836988, 10255482, 20510964]

約数ペア:

[(1, 20510964), (2, 10255482), (3, 6836988), (4, 5127741), (6, 3418494), (9, 2278996), (12, 1709247), (18, 1139498), (31, 661644), (36, 569749), (62, 330822), (93, 220548), (124, 165411), (186, 110274), (279, 73516), (372, 55137), (558, 36758), (1116, 18379)]