21866704

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{859}}^1$

素因数の和:947

約数の個数: 40

約数和(自身を含む): 44575520

約数和(自身を除く): 22708816

約数列:

[1, 2, 4, 8, 16, 37, 43, 74, 86, 148, 172, 296, 344, 592, 688, 859, 1591, 1718, 3182, 3436, 6364, 6872, 12728, 13744, 25456, 31783, 36937, 63566, 73874, 127132, 147748, 254264, 295496, 508528, 590992, 1366669, 2733338, 5466676, 10933352, 21866704]

約数ペア:

[(1, 21866704), (2, 10933352), (4, 5466676), (8, 2733338), (16, 1366669), (37, 590992), (43, 508528), (74, 295496), (86, 254264), (148, 147748), (172, 127132), (296, 73874), (344, 63566), (592, 36937), (688, 31783), (859, 25456), (1591, 13744), (1718, 12728), (3182, 6872), (3436, 6364)]