21851505

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12451}}^1$

素因数の和:12478

約数の個数: 32

約数和(自身を含む): 41838720

約数和(自身を除く): 19987215

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 585, 1755, 12451, 37353, 62255, 112059, 161863, 186765, 336177, 485589, 560295, 809315, 1456767, 1680885, 2427945, 4370301, 7283835, 21851505]

約数ペア:

[(1, 21851505), (3, 7283835), (5, 4370301), (9, 2427945), (13, 1680885), (15, 1456767), (27, 809315), (39, 560295), (45, 485589), (65, 336177), (117, 186765), (135, 161863), (195, 112059), (351, 62255), (585, 37353), (1755, 12451)]