21068730

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1787}}^1$

素因数の和:1931

約数の個数: 48

約数和(自身を含む): 55227744

約数和(自身を除く): 34159014

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 131, 262, 393, 655, 786, 1179, 1310, 1787, 1965, 2358, 3574, 3930, 5361, 5895, 8935, 10722, 11790, 16083, 17870, 26805, 32166, 53610, 80415, 160830, 234097, 468194, 702291, 1170485, 1404582, 2106873, 2340970, 3511455, 4213746, 7022910, 10534365, 21068730]

約数ペア:

[(1, 21068730), (2, 10534365), (3, 7022910), (5, 4213746), (6, 3511455), (9, 2340970), (10, 2106873), (15, 1404582), (18, 1170485), (30, 702291), (45, 468194), (90, 234097), (131, 160830), (262, 80415), (393, 53610), (655, 32166), (786, 26805), (1179, 17870), (1310, 16083), (1787, 11790), (1965, 10722), (2358, 8935), (3574, 5895), (3930, 5361)]