19277955

素因数分解:

$3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 34875360

約数和(自身を除く): 15597405

約数列:

[1, 3, 5, 9, 15, 45, 53, 59, 137, 159, 177, 265, 295, 411, 477, 531, 685, 795, 885, 1233, 2055, 2385, 2655, 3127, 6165, 7261, 8083, 9381, 15635, 21783, 24249, 28143, 36305, 40415, 46905, 65349, 72747, 108915, 121245, 140715, 326745, 363735, 428399, 1285197, 2141995, 3855591, 6425985, 19277955]

約数ペア:

[(1, 19277955), (3, 6425985), (5, 3855591), (9, 2141995), (15, 1285197), (45, 428399), (53, 363735), (59, 326745), (137, 140715), (159, 121245), (177, 108915), (265, 72747), (295, 65349), (411, 46905), (477, 40415), (531, 36305), (685, 28143), (795, 24249), (885, 21783), (1233, 15635), (2055, 9381), (2385, 8083), (2655, 7261), (3127, 6165)]