21102122

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{509}}^1\times {\mathrm{1091}}^1$

素因数の和:1621

約数の個数: 16

約数和(自身を含む): 33415200

約数和(自身を除く): 12313078

約数列:

[1, 2, 19, 38, 509, 1018, 1091, 2182, 9671, 19342, 20729, 41458, 555319, 1110638, 10551061, 21102122]

約数ペア:

[(1, 21102122), (2, 10551061), (19, 1110638), (38, 555319), (509, 41458), (1018, 20729), (1091, 19342), (2182, 9671)]