18212775

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{307}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 34831104

約数和(自身を除く): 16618329

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 113, 175, 307, 339, 525, 565, 791, 921, 1535, 1695, 2149, 2373, 2825, 3955, 4605, 6447, 7675, 8475, 10745, 11865, 19775, 23025, 32235, 34691, 53725, 59325, 104073, 161175, 173455, 242837, 520365, 728511, 867275, 1214185, 2601825, 3642555, 6070925, 18212775]

約数ペア:

[(1, 18212775), (3, 6070925), (5, 3642555), (7, 2601825), (15, 1214185), (21, 867275), (25, 728511), (35, 520365), (75, 242837), (105, 173455), (113, 161175), (175, 104073), (307, 59325), (339, 53725), (525, 34691), (565, 32235), (791, 23025), (921, 19775), (1535, 11865), (1695, 10745), (2149, 8475), (2373, 7675), (2825, 6447), (3955, 4605)]