21859365

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{7793}}^1$

素因数の和:7829

約数の個数: 32

約数和(自身を含む): 40404096

約数和(自身を除く): 18544731

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 55, 85, 165, 187, 255, 561, 935, 2805, 7793, 23379, 38965, 85723, 116895, 132481, 257169, 397443, 428615, 662405, 1285845, 1457291, 1987215, 4371873, 7286455, 21859365]

約数ペア:

[(1, 21859365), (3, 7286455), (5, 4371873), (11, 1987215), (15, 1457291), (17, 1285845), (33, 662405), (51, 428615), (55, 397443), (85, 257169), (165, 132481), (187, 116895), (255, 85723), (561, 38965), (935, 23379), (2805, 7793)]