71605647

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{1721}}^1$

素因数の和:1820

約数の個数: 32

約数和(自身を含む): 112412160

約数和(自身を除く): 40806513

約数列:

[1, 3, 9, 23, 27, 67, 69, 201, 207, 603, 621, 1541, 1721, 1809, 4623, 5163, 13869, 15489, 39583, 41607, 46467, 115307, 118749, 345921, 356247, 1037763, 1068741, 2652061, 3113289, 7956183, 23868549, 71605647]

約数ペア:

[(1, 71605647), (3, 23868549), (9, 7956183), (23, 3113289), (27, 2652061), (67, 1068741), (69, 1037763), (201, 356247), (207, 345921), (603, 118749), (621, 115307), (1541, 46467), (1721, 41607), (1809, 39583), (4623, 15489), (5163, 13869)]