21779288

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{179}}^1\times {\mathrm{227}}^1$

素因数の和:479

約数の個数: 32

約数和(自身を含む): 41860800

約数和(自身を除く): 20081512

約数列:

[1, 2, 4, 8, 67, 134, 179, 227, 268, 358, 454, 536, 716, 908, 1432, 1816, 11993, 15209, 23986, 30418, 40633, 47972, 60836, 81266, 95944, 121672, 162532, 325064, 2722411, 5444822, 10889644, 21779288]

約数ペア:

[(1, 21779288), (2, 10889644), (4, 5444822), (8, 2722411), (67, 325064), (134, 162532), (179, 121672), (227, 95944), (268, 81266), (358, 60836), (454, 47972), (536, 40633), (716, 30418), (908, 23986), (1432, 15209), (1816, 11993)]