21152421

素因数分解:

$3^5\times {\mathrm{61}}^1\times {\mathrm{1427}}^1$

素因数の和:1503

約数の個数: 24

約数和(自身を含む): 32227104

約数和(自身を除く): 11074683

約数列:

[1, 3, 9, 27, 61, 81, 183, 243, 549, 1427, 1647, 4281, 4941, 12843, 14823, 38529, 87047, 115587, 261141, 346761, 783423, 2350269, 7050807, 21152421]

約数ペア:

[(1, 21152421), (3, 7050807), (9, 2350269), (27, 783423), (61, 346761), (81, 261141), (183, 115587), (243, 87047), (549, 38529), (1427, 14823), (1647, 12843), (4281, 4941)]