21162544

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1433}}^1$

素因数の和:1525

約数の個数: 40

約数和(自身を含む): 44809632

約数和(自身を除く): 23647088

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 71, 104, 142, 208, 284, 568, 923, 1136, 1433, 1846, 2866, 3692, 5732, 7384, 11464, 14768, 18629, 22928, 37258, 74516, 101743, 149032, 203486, 298064, 406972, 813944, 1322659, 1627888, 2645318, 5290636, 10581272, 21162544]

約数ペア:

[(1, 21162544), (2, 10581272), (4, 5290636), (8, 2645318), (13, 1627888), (16, 1322659), (26, 813944), (52, 406972), (71, 298064), (104, 203486), (142, 149032), (208, 101743), (284, 74516), (568, 37258), (923, 22928), (1136, 18629), (1433, 14768), (1846, 11464), (2866, 7384), (3692, 5732)]