209845917

素因数分解:

$3^3\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{1237}}^1$

素因数の和:1410

約数の個数: 32

約数和(自身を含む): 319304960

約数和(自身を除く): 109459043

約数列:

[1, 3, 9, 27, 61, 103, 183, 309, 549, 927, 1237, 1647, 2781, 3711, 6283, 11133, 18849, 33399, 56547, 75457, 127411, 169641, 226371, 382233, 679113, 1146699, 2037339, 3440097, 7772071, 23316213, 69948639, 209845917]

約数ペア:

[(1, 209845917), (3, 69948639), (9, 23316213), (27, 7772071), (61, 3440097), (103, 2037339), (183, 1146699), (309, 679113), (549, 382233), (927, 226371), (1237, 169641), (1647, 127411), (2781, 75457), (3711, 56547), (6283, 33399), (11133, 18849)]