21126456

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{22571}}^1$

素因数の和:22596

約数の個数: 48

約数和(自身を含む): 61621560

約数和(自身を除く): 40495104

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936, 22571, 45142, 67713, 90284, 135426, 180568, 203139, 270852, 293423, 406278, 541704, 586846, 812556, 880269, 1173692, 1625112, 1760538, 2347384, 2640807, 3521076, 5281614, 7042152, 10563228, 21126456]

約数ペア:

[(1, 21126456), (2, 10563228), (3, 7042152), (4, 5281614), (6, 3521076), (8, 2640807), (9, 2347384), (12, 1760538), (13, 1625112), (18, 1173692), (24, 880269), (26, 812556), (36, 586846), (39, 541704), (52, 406278), (72, 293423), (78, 270852), (104, 203139), (117, 180568), (156, 135426), (234, 90284), (312, 67713), (468, 45142), (936, 22571)]