19163403

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{617}}^1$

素因数の和:676

約数の個数: 48

約数和(自身を含む): 34706880

約数和(自身を除く): 15543477

約数列:

[1, 3, 7, 9, 17, 21, 29, 51, 63, 87, 119, 153, 203, 261, 357, 493, 609, 617, 1071, 1479, 1827, 1851, 3451, 4319, 4437, 5553, 10353, 10489, 12957, 17893, 31059, 31467, 38871, 53679, 73423, 94401, 125251, 161037, 220269, 304181, 375753, 660807, 912543, 1127259, 2129267, 2737629, 6387801, 19163403]

約数ペア:

[(1, 19163403), (3, 6387801), (7, 2737629), (9, 2129267), (17, 1127259), (21, 912543), (29, 660807), (51, 375753), (63, 304181), (87, 220269), (119, 161037), (153, 125251), (203, 94401), (261, 73423), (357, 53679), (493, 38871), (609, 31467), (617, 31059), (1071, 17893), (1479, 12957), (1827, 10489), (1851, 10353), (3451, 5553), (4319, 4437)]