221572155

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{211}}^1$

素因数の和:436

約数の個数: 64

約数和(自身を含む): 415669248

約数和(自身を除く): 194097093

約数列:

[1, 3, 5, 7, 15, 21, 35, 73, 105, 137, 211, 219, 365, 411, 511, 633, 685, 959, 1055, 1095, 1477, 1533, 2055, 2555, 2877, 3165, 4431, 4795, 7385, 7665, 10001, 14385, 15403, 22155, 28907, 30003, 46209, 50005, 70007, 77015, 86721, 107821, 144535, 150015, 202349, 210021, 231045, 323463, 350035, 433605, 539105, 607047, 1011745, 1050105, 1617315, 2110211, 3035235, 6330633, 10551055, 14771477, 31653165, 44314431, 73857385, 221572155]

約数ペア:

[(1, 221572155), (3, 73857385), (5, 44314431), (7, 31653165), (15, 14771477), (21, 10551055), (35, 6330633), (73, 3035235), (105, 2110211), (137, 1617315), (211, 1050105), (219, 1011745), (365, 607047), (411, 539105), (511, 433605), (633, 350035), (685, 323463), (959, 231045), (1055, 210021), (1095, 202349), (1477, 150015), (1533, 144535), (2055, 107821), (2555, 86721), (2877, 77015), (3165, 70007), (4431, 50005), (4795, 46209), (7385, 30003), (7665, 28907), (10001, 22155), (14385, 15403)]