21264896

素因数分解:

$2^9\times {\mathrm{41}}^1\times {\mathrm{1013}}^1$

素因数の和:1072

約数の個数: 40

約数和(自身を含む): 43567524

約数和(自身を除く): 22302628

約数列:

[1, 2, 4, 8, 16, 32, 41, 64, 82, 128, 164, 256, 328, 512, 656, 1013, 1312, 2026, 2624, 4052, 5248, 8104, 10496, 16208, 20992, 32416, 41533, 64832, 83066, 129664, 166132, 259328, 332264, 518656, 664528, 1329056, 2658112, 5316224, 10632448, 21264896]

約数ペア:

[(1, 21264896), (2, 10632448), (4, 5316224), (8, 2658112), (16, 1329056), (32, 664528), (41, 518656), (64, 332264), (82, 259328), (128, 166132), (164, 129664), (256, 83066), (328, 64832), (512, 41533), (656, 32416), (1013, 20992), (1312, 16208), (2026, 10496), (2624, 8104), (4052, 5248)]