21502965

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^4$

素因数の和:95

約数の個数: 40

約数和(自身を含む): 39617568

約数和(自身を除く): 18114603

約数列:

[1, 3, 5, 11, 15, 19, 33, 55, 57, 95, 165, 209, 285, 361, 627, 1045, 1083, 1805, 3135, 3971, 5415, 6859, 11913, 19855, 20577, 34295, 59565, 75449, 102885, 130321, 226347, 377245, 390963, 651605, 1131735, 1433531, 1954815, 4300593, 7167655, 21502965]

約数ペア:

[(1, 21502965), (3, 7167655), (5, 4300593), (11, 1954815), (15, 1433531), (19, 1131735), (33, 651605), (55, 390963), (57, 377245), (95, 226347), (165, 130321), (209, 102885), (285, 75449), (361, 59565), (627, 34295), (1045, 20577), (1083, 19855), (1805, 11913), (3135, 6859), (3971, 5415)]