19877403

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4283}}^1$

素因数の和:4323

約数の個数: 32

約数和(自身を含む): 34546176

約数和(自身を除く): 14668773

約数列:

[1, 3, 7, 13, 17, 21, 39, 51, 91, 119, 221, 273, 357, 663, 1547, 4283, 4641, 12849, 29981, 55679, 72811, 89943, 167037, 218433, 389753, 509677, 946543, 1169259, 1529031, 2839629, 6625801, 19877403]

約数ペア:

[(1, 19877403), (3, 6625801), (7, 2839629), (13, 1529031), (17, 1169259), (21, 946543), (39, 509677), (51, 389753), (91, 218433), (119, 167037), (221, 89943), (273, 72811), (357, 55679), (663, 29981), (1547, 12849), (4283, 4641)]