21512504

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{3391}}^1$

素因数の和:3471

約数の個数: 32

約数和(自身を含む): 44163840

約数和(自身を除く): 22651336

約数列:

[1, 2, 4, 8, 13, 26, 52, 61, 104, 122, 244, 488, 793, 1586, 3172, 3391, 6344, 6782, 13564, 27128, 44083, 88166, 176332, 206851, 352664, 413702, 827404, 1654808, 2689063, 5378126, 10756252, 21512504]

約数ペア:

[(1, 21512504), (2, 10756252), (4, 5378126), (8, 2689063), (13, 1654808), (26, 827404), (52, 413702), (61, 352664), (104, 206851), (122, 176332), (244, 88166), (488, 44083), (793, 27128), (1586, 13564), (3172, 6782), (3391, 6344)]