20101515

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{3907}}^1$

素因数の和:3936

約数の個数: 32

約数和(自身を含む): 37516800

約数和(自身を除く): 17415285

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 343, 735, 1029, 1715, 3907, 5145, 11721, 19535, 27349, 58605, 82047, 136745, 191443, 410235, 574329, 957215, 1340101, 2871645, 4020303, 6700505, 20101515]

約数ペア:

[(1, 20101515), (3, 6700505), (5, 4020303), (7, 2871645), (15, 1340101), (21, 957215), (35, 574329), (49, 410235), (105, 191443), (147, 136745), (245, 82047), (343, 58605), (735, 27349), (1029, 19535), (1715, 11721), (3907, 5145)]