21290147344

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{16843471}}^1$

素因数の和:16843558

約数の個数: 20

約数和(自身を含む): 41771810560

約数和(自身を除く): 20481663216

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 16843471, 33686942, 67373884, 134747768, 269495536, 1330634209, 2661268418, 5322536836, 10645073672, 21290147344]

約数ペア:

[(1, 21290147344), (2, 10645073672), (4, 5322536836), (8, 2661268418), (16, 1330634209), (79, 269495536), (158, 134747768), (316, 67373884), (632, 33686942), (1264, 16843471)]