21352448

素因数分解:

$2^{12}\times {\mathrm{13}}^1\times {\mathrm{401}}^1$

素因数の和:438

約数の個数: 52

約数和(自身を含む): 46098948

約数和(自身を除く): 24746500

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 401, 416, 512, 802, 832, 1024, 1604, 1664, 2048, 3208, 3328, 4096, 5213, 6416, 6656, 10426, 12832, 13312, 20852, 25664, 26624, 41704, 51328, 53248, 83408, 102656, 166816, 205312, 333632, 410624, 667264, 821248, 1334528, 1642496, 2669056, 5338112, 10676224, 21352448]

約数ペア:

[(1, 21352448), (2, 10676224), (4, 5338112), (8, 2669056), (13, 1642496), (16, 1334528), (26, 821248), (32, 667264), (52, 410624), (64, 333632), (104, 205312), (128, 166816), (208, 102656), (256, 83408), (401, 53248), (416, 51328), (512, 41704), (802, 26624), (832, 25664), (1024, 20852), (1604, 13312), (1664, 12832), (2048, 10426), (3208, 6656), (3328, 6416), (4096, 5213)]