21150840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4099}}^1$

素因数の和:4156

約数の個数: 64

約数和(自身を含む): 64944000

約数和(自身を除く): 43793160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 172, 215, 258, 344, 430, 516, 645, 860, 1032, 1290, 1720, 2580, 4099, 5160, 8198, 12297, 16396, 20495, 24594, 32792, 40990, 49188, 61485, 81980, 98376, 122970, 163960, 176257, 245940, 352514, 491880, 528771, 705028, 881285, 1057542, 1410056, 1762570, 2115084, 2643855, 3525140, 4230168, 5287710, 7050280, 10575420, 21150840]

約数ペア:

[(1, 21150840), (2, 10575420), (3, 7050280), (4, 5287710), (5, 4230168), (6, 3525140), (8, 2643855), (10, 2115084), (12, 1762570), (15, 1410056), (20, 1057542), (24, 881285), (30, 705028), (40, 528771), (43, 491880), (60, 352514), (86, 245940), (120, 176257), (129, 163960), (172, 122970), (215, 98376), (258, 81980), (344, 61485), (430, 49188), (516, 40990), (645, 32792), (860, 24594), (1032, 20495), (1290, 16396), (1720, 12297), (2580, 8198), (4099, 5160)]