20854816

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{21023}}^1$

素因数の和:21064

約数の個数: 24

約数和(自身を含む): 42384384

約数和(自身を除く): 21529568

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 124, 248, 496, 992, 21023, 42046, 84092, 168184, 336368, 651713, 672736, 1303426, 2606852, 5213704, 10427408, 20854816]

約数ペア:

[(1, 20854816), (2, 10427408), (4, 5213704), (8, 2606852), (16, 1303426), (31, 672736), (32, 651713), (62, 336368), (124, 168184), (248, 84092), (496, 42046), (992, 21023)]