21570704

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{439}}^1$

素因数の和:567

約数の個数: 40

約数和(自身を含む): 43538880

約数和(自身を除く): 21968176

約数列:

[1, 2, 4, 8, 16, 37, 74, 83, 148, 166, 296, 332, 439, 592, 664, 878, 1328, 1756, 3071, 3512, 6142, 7024, 12284, 16243, 24568, 32486, 36437, 49136, 64972, 72874, 129944, 145748, 259888, 291496, 582992, 1348169, 2696338, 5392676, 10785352, 21570704]

約数ペア:

[(1, 21570704), (2, 10785352), (4, 5392676), (8, 2696338), (16, 1348169), (37, 582992), (74, 291496), (83, 259888), (148, 145748), (166, 129944), (296, 72874), (332, 64972), (439, 49136), (592, 36437), (664, 32486), (878, 24568), (1328, 16243), (1756, 12284), (3071, 7024), (3512, 6142)]