21901490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8867}}^1$

素因数の和:8906

約数の個数: 32

約数和(自身を含む): 44694720

約数和(自身を除く): 22793230

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 8867, 17734, 44335, 88670, 115271, 168473, 230542, 336946, 576355, 842365, 1152710, 1684730, 2190149, 4380298, 10950745, 21901490]

約数ペア:

[(1, 21901490), (2, 10950745), (5, 4380298), (10, 2190149), (13, 1684730), (19, 1152710), (26, 842365), (38, 576355), (65, 336946), (95, 230542), (130, 168473), (190, 115271), (247, 88670), (494, 44335), (1235, 17734), (2470, 8867)]