21546915

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{2351}}^1$

素因数の和:2419

約数の個数: 32

約数和(自身を含む): 37933056

約数和(自身を除く): 16386141

約数列:

[1, 3, 5, 13, 15, 39, 47, 65, 141, 195, 235, 611, 705, 1833, 2351, 3055, 7053, 9165, 11755, 30563, 35265, 91689, 110497, 152815, 331491, 458445, 552485, 1436461, 1657455, 4309383, 7182305, 21546915]

約数ペア:

[(1, 21546915), (3, 7182305), (5, 4309383), (13, 1657455), (15, 1436461), (39, 552485), (47, 458445), (65, 331491), (141, 152815), (195, 110497), (235, 91689), (611, 35265), (705, 30563), (1833, 11755), (2351, 9165), (3055, 7053)]