21499485

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{29251}}^1$

素因数の和:29273

約数の個数: 24

約数和(自身を含む): 40016736

約数和(自身を除く): 18517251

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 29251, 87753, 146255, 204757, 438765, 614271, 1023785, 1433299, 3071355, 4299897, 7166495, 21499485]

約数ペア:

[(1, 21499485), (3, 7166495), (5, 4299897), (7, 3071355), (15, 1433299), (21, 1023785), (35, 614271), (49, 438765), (105, 204757), (147, 146255), (245, 87753), (735, 29251)]