21219369

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{229}}^1\times {\mathrm{461}}^1$

素因数の和:760

約数の個数: 16

約数和(自身を含む): 28902720

約数和(自身を除く): 7683351

約数列:

[1, 3, 67, 201, 229, 461, 687, 1383, 15343, 30887, 46029, 92661, 105569, 316707, 7073123, 21219369]

約数ペア:

[(1, 21219369), (3, 7073123), (67, 316707), (201, 105569), (229, 92661), (461, 46029), (687, 30887), (1383, 15343)]