20643804

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{30181}}^1$

素因数の和:30210

約数の個数: 36

約数和(自身を含む): 54931240

約数和(自身を除く): 34287436

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 342, 684, 30181, 60362, 90543, 120724, 181086, 271629, 362172, 543258, 573439, 1086516, 1146878, 1720317, 2293756, 3440634, 5160951, 6881268, 10321902, 20643804]

約数ペア:

[(1, 20643804), (2, 10321902), (3, 6881268), (4, 5160951), (6, 3440634), (9, 2293756), (12, 1720317), (18, 1146878), (19, 1086516), (36, 573439), (38, 543258), (57, 362172), (76, 271629), (114, 181086), (171, 120724), (228, 90543), (342, 60362), (684, 30181)]