21099736

素因数分解:

$2^3\times 7^1\times {\mathrm{577}}^1\times {\mathrm{653}}^1$

素因数の和:1243

約数の個数: 32

約数和(自身を含む): 45361440

約数和(自身を除く): 24261704

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 577, 653, 1154, 1306, 2308, 2612, 4039, 4571, 4616, 5224, 8078, 9142, 16156, 18284, 32312, 36568, 376781, 753562, 1507124, 2637467, 3014248, 5274934, 10549868, 21099736]

約数ペア:

[(1, 21099736), (2, 10549868), (4, 5274934), (7, 3014248), (8, 2637467), (14, 1507124), (28, 753562), (56, 376781), (577, 36568), (653, 32312), (1154, 18284), (1306, 16156), (2308, 9142), (2612, 8078), (4039, 5224), (4571, 4616)]