18131841

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^3\times {\mathrm{131}}^1$

素因数の和:183

約数の個数: 48

約数和(自身を含む): 32672640

約数和(自身を除く): 14540799

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 131, 169, 273, 393, 507, 819, 917, 1179, 1183, 1521, 1703, 2197, 2751, 3549, 5109, 6591, 8253, 10647, 11921, 15327, 15379, 19773, 22139, 35763, 46137, 66417, 107289, 138411, 154973, 199251, 287807, 464919, 863421, 1394757, 2014649, 2590263, 6043947, 18131841]

約数ペア:

[(1, 18131841), (3, 6043947), (7, 2590263), (9, 2014649), (13, 1394757), (21, 863421), (39, 464919), (63, 287807), (91, 199251), (117, 154973), (131, 138411), (169, 107289), (273, 66417), (393, 46137), (507, 35763), (819, 22139), (917, 19773), (1179, 15379), (1183, 15327), (1521, 11921), (1703, 10647), (2197, 8253), (2751, 6591), (3549, 5109)]