18878823

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{757}}^1$

素因数の和:943

約数の個数: 24

約数和(自身を含む): 29089008

約数和(自身を除く): 10210185

約数列:

[1, 3, 9, 17, 51, 153, 163, 489, 757, 1467, 2271, 2771, 6813, 8313, 12869, 24939, 38607, 115821, 123391, 370173, 1110519, 2097647, 6292941, 18878823]

約数ペア:

[(1, 18878823), (3, 6292941), (9, 2097647), (17, 1110519), (51, 370173), (153, 123391), (163, 115821), (489, 38607), (757, 24939), (1467, 12869), (2271, 8313), (2771, 6813)]