131221792

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{315437}}^1$

素因数の和:315460

約数の個数: 24

約数和(自身を含む): 278216316

約数和(自身を除く): 146994524

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 315437, 630874, 1261748, 2523496, 4100681, 5046992, 8201362, 10093984, 16402724, 32805448, 65610896, 131221792]

約数ペア:

[(1, 131221792), (2, 65610896), (4, 32805448), (8, 16402724), (13, 10093984), (16, 8201362), (26, 5046992), (32, 4100681), (52, 2523496), (104, 1261748), (208, 630874), (416, 315437)]