21087484

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{12953}}^1$

素因数の和:13005

約数の個数: 24

約数和(自身を含む): 41349168

約数和(自身を除く): 20261684

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 148, 407, 814, 1628, 12953, 25906, 51812, 142483, 284966, 479261, 569932, 958522, 1917044, 5271871, 10543742, 21087484]

約数ペア:

[(1, 21087484), (2, 10543742), (4, 5271871), (11, 1917044), (22, 958522), (37, 569932), (44, 479261), (74, 284966), (148, 142483), (407, 51812), (814, 25906), (1628, 12953)]