21729207

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{379}}^1\times {\mathrm{659}}^1$

素因数の和:1070

約数の個数: 16

約数和(自身を含む): 30096000

約数和(自身を除く): 8366793

約数列:

[1, 3, 29, 87, 379, 659, 1137, 1977, 10991, 19111, 32973, 57333, 249761, 749283, 7243069, 21729207]

約数ペア:

[(1, 21729207), (3, 7243069), (29, 749283), (87, 249761), (379, 57333), (659, 32973), (1137, 19111), (1977, 10991)]