81651654

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{648029}}^1$

素因数の和:648044

約数の個数: 24

約数和(自身を含む): 202185360

約数和(自身を除く): 120533706

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 648029, 1296058, 1944087, 3888174, 4536203, 5832261, 9072406, 11664522, 13608609, 27217218, 40825827, 81651654]

約数ペア:

[(1, 81651654), (2, 40825827), (3, 27217218), (6, 13608609), (7, 11664522), (9, 9072406), (14, 5832261), (18, 4536203), (21, 3888174), (42, 1944087), (63, 1296058), (126, 648029)]