21244718

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{6481}}^1$

素因数の和:6643

約数の個数: 16

約数和(自身を含む): 35002800

約数和(自身を除く): 13758082

約数列:

[1, 2, 11, 22, 149, 298, 1639, 3278, 6481, 12962, 71291, 142582, 965669, 1931338, 10622359, 21244718]

約数ペア:

[(1, 21244718), (2, 10622359), (11, 1931338), (22, 965669), (149, 142582), (298, 71291), (1639, 12962), (3278, 6481)]