21309735

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{74771}}^1$

素因数の和:74798

約数の個数: 16

約数和(自身を含む): 35890560

約数和(自身を除く): 14580825

約数列:

[1, 3, 5, 15, 19, 57, 95, 285, 74771, 224313, 373855, 1121565, 1420649, 4261947, 7103245, 21309735]

約数ペア:

[(1, 21309735), (3, 7103245), (5, 4261947), (15, 1420649), (19, 1121565), (57, 373855), (95, 224313), (285, 74771)]