21512204

素因数分解:

$2^2\times 7^1\times {\mathrm{173}}^1\times {\mathrm{4441}}^1$

素因数の和:4625

約数の個数: 24

約数和(自身を含む): 43282848

約数和(自身を除く): 21770644

約数列:

[1, 2, 4, 7, 14, 28, 173, 346, 692, 1211, 2422, 4441, 4844, 8882, 17764, 31087, 62174, 124348, 768293, 1536586, 3073172, 5378051, 10756102, 21512204]

約数ペア:

[(1, 21512204), (2, 10756102), (4, 5378051), (7, 3073172), (14, 1536586), (28, 768293), (173, 124348), (346, 62174), (692, 31087), (1211, 17764), (2422, 8882), (4441, 4844)]