21602973

素因数分解:

$3^1\times 7^2\times {\mathrm{179}}^1\times {\mathrm{821}}^1$

素因数の和:1017

約数の個数: 24

約数和(自身を含む): 33734880

約数和(自身を除く): 12131907

約数列:

[1, 3, 7, 21, 49, 147, 179, 537, 821, 1253, 2463, 3759, 5747, 8771, 17241, 26313, 40229, 120687, 146959, 440877, 1028713, 3086139, 7200991, 21602973]

約数ペア:

[(1, 21602973), (3, 7200991), (7, 3086139), (21, 1028713), (49, 440877), (147, 146959), (179, 120687), (537, 40229), (821, 26313), (1253, 17241), (2463, 8771), (3759, 5747)]