20810872

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{167}}^1\times {\mathrm{421}}^1$

素因数の和:631

約数の個数: 32

約数和(自身を含む): 40410720

約数和(自身を除く): 19599848

約数列:

[1, 2, 4, 8, 37, 74, 148, 167, 296, 334, 421, 668, 842, 1336, 1684, 3368, 6179, 12358, 15577, 24716, 31154, 49432, 62308, 70307, 124616, 140614, 281228, 562456, 2601359, 5202718, 10405436, 20810872]

約数ペア:

[(1, 20810872), (2, 10405436), (4, 5202718), (8, 2601359), (37, 562456), (74, 281228), (148, 140614), (167, 124616), (296, 70307), (334, 62308), (421, 49432), (668, 31154), (842, 24716), (1336, 15577), (1684, 12358), (3368, 6179)]