21358090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8647}}^1$

素因数の和:8686

約数の個数: 32

約数和(自身を含む): 43585920

約数和(自身を除く): 22227830

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 8647, 17294, 43235, 86470, 112411, 164293, 224822, 328586, 562055, 821465, 1124110, 1642930, 2135809, 4271618, 10679045, 21358090]

約数ペア:

[(1, 21358090), (2, 10679045), (5, 4271618), (10, 2135809), (13, 1642930), (19, 1124110), (26, 821465), (38, 562055), (65, 328586), (95, 224822), (130, 164293), (190, 112411), (247, 86470), (494, 43235), (1235, 17294), (2470, 8647)]