21319968

素因数分解:

$2^5\times 3^1\times {\mathrm{337}}^1\times {\mathrm{659}}^1$

素因数の和:1009

約数の個数: 48

約数和(自身を含む): 56216160

約数和(自身を除く): 34896192

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 337, 659, 674, 1011, 1318, 1348, 1977, 2022, 2636, 2696, 3954, 4044, 5272, 5392, 7908, 8088, 10544, 10784, 15816, 16176, 21088, 31632, 32352, 63264, 222083, 444166, 666249, 888332, 1332498, 1776664, 2664996, 3553328, 5329992, 7106656, 10659984, 21319968]

約数ペア:

[(1, 21319968), (2, 10659984), (3, 7106656), (4, 5329992), (6, 3553328), (8, 2664996), (12, 1776664), (16, 1332498), (24, 888332), (32, 666249), (48, 444166), (96, 222083), (337, 63264), (659, 32352), (674, 31632), (1011, 21088), (1318, 16176), (1348, 15816), (1977, 10784), (2022, 10544), (2636, 8088), (2696, 7908), (3954, 5392), (4044, 5272)]