21872122

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{1291}}^1$

素因数の和:1533

約数の個数: 16

約数和(自身を含む): 33767712

約数和(自身を除く): 11895590

約数列:

[1, 2, 43, 86, 197, 394, 1291, 2582, 8471, 16942, 55513, 111026, 254327, 508654, 10936061, 21872122]

約数ペア:

[(1, 21872122), (2, 10936061), (43, 508654), (86, 254327), (197, 111026), (394, 55513), (1291, 16942), (2582, 8471)]