20669312

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{5209}}^1$

素因数の和:5254

約数の個数: 32

約数和(自身を含む): 42513600

約数和(自身を除く): 21844288

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 992, 1984, 3968, 5209, 10418, 20836, 41672, 83344, 161479, 166688, 322958, 333376, 645916, 666752, 1291832, 2583664, 5167328, 10334656, 20669312]

約数ペア:

[(1, 20669312), (2, 10334656), (4, 5167328), (8, 2583664), (16, 1291832), (31, 666752), (32, 645916), (62, 333376), (64, 322958), (124, 166688), (128, 161479), (248, 83344), (496, 41672), (992, 20836), (1984, 10418), (3968, 5209)]