21315531170

素因数分解:

$2^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{619}}^1\times {\mathrm{13399}}^1$

素因数の和:14282

約数の個数: 32

約数和(自身を含む): 38582352000

約数和(自身を除く): 17266820830

約数列:

[1, 2, 5, 10, 257, 514, 619, 1238, 1285, 2570, 3095, 6190, 13399, 26798, 66995, 133990, 159083, 318166, 795415, 1590830, 3443543, 6887086, 8293981, 16587962, 17217715, 34435430, 41469905, 82939810, 2131553117, 4263106234, 10657765585, 21315531170]

約数ペア:

[(1, 21315531170), (2, 10657765585), (5, 4263106234), (10, 2131553117), (257, 82939810), (514, 41469905), (619, 34435430), (1238, 17217715), (1285, 16587962), (2570, 8293981), (3095, 6887086), (6190, 3443543), (13399, 1590830), (26798, 795415), (66995, 318166), (133990, 159083)]