21334885

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{563}}^1$

素因数の和:645

約数の個数: 32

約数和(自身を含む): 30699648

約数和(自身を除く): 9364763

約数列:

[1, 5, 11, 13, 53, 55, 65, 143, 265, 563, 583, 689, 715, 2815, 2915, 3445, 6193, 7319, 7579, 29839, 30965, 36595, 37895, 80509, 149195, 328229, 387907, 402545, 1641145, 1939535, 4266977, 21334885]

約数ペア:

[(1, 21334885), (5, 4266977), (11, 1939535), (13, 1641145), (53, 402545), (55, 387907), (65, 328229), (143, 149195), (265, 80509), (563, 37895), (583, 36595), (689, 30965), (715, 29839), (2815, 7579), (2915, 7319), (3445, 6193)]