21032685

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1$

素因数の和:338

約数の個数: 48

約数和(自身を含む): 38413440

約数和(自身を除く): 17380755

約数列:

[1, 3, 5, 9, 15, 29, 45, 71, 87, 145, 213, 227, 261, 355, 435, 639, 681, 1065, 1135, 1305, 2043, 2059, 3195, 3405, 6177, 6583, 10215, 10295, 16117, 18531, 19749, 30885, 32915, 48351, 59247, 80585, 92655, 98745, 145053, 241755, 296235, 467393, 725265, 1402179, 2336965, 4206537, 7010895, 21032685]

約数ペア:

[(1, 21032685), (3, 7010895), (5, 4206537), (9, 2336965), (15, 1402179), (29, 725265), (45, 467393), (71, 296235), (87, 241755), (145, 145053), (213, 98745), (227, 92655), (261, 80585), (355, 59247), (435, 48351), (639, 32915), (681, 30885), (1065, 19749), (1135, 18531), (1305, 16117), (2043, 10295), (2059, 10215), (3195, 6583), (3405, 6177)]