21663268

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{25913}}^1$

素因数の和:25947

約数の個数: 24

約数和(自身を含む): 43535520

約数和(自身を除く): 21872252

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 418, 836, 25913, 51826, 103652, 285043, 492347, 570086, 984694, 1140172, 1969388, 5415817, 10831634, 21663268]

約数ペア:

[(1, 21663268), (2, 10831634), (4, 5415817), (11, 1969388), (19, 1140172), (22, 984694), (38, 570086), (44, 492347), (76, 285043), (209, 103652), (418, 51826), (836, 25913)]