21315108

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{787}}^1$

素因数の和:892

約数の個数: 48

約数和(自身を含む): 51982784

約数和(自身を除く): 30667676

約数列:

[1, 2, 3, 4, 6, 12, 37, 61, 74, 111, 122, 148, 183, 222, 244, 366, 444, 732, 787, 1574, 2257, 2361, 3148, 4514, 4722, 6771, 9028, 9444, 13542, 27084, 29119, 48007, 58238, 87357, 96014, 116476, 144021, 174714, 192028, 288042, 349428, 576084, 1776259, 3552518, 5328777, 7105036, 10657554, 21315108]

約数ペア:

[(1, 21315108), (2, 10657554), (3, 7105036), (4, 5328777), (6, 3552518), (12, 1776259), (37, 576084), (61, 349428), (74, 288042), (111, 192028), (122, 174714), (148, 144021), (183, 116476), (222, 96014), (244, 87357), (366, 58238), (444, 48007), (732, 29119), (787, 27084), (1574, 13542), (2257, 9444), (2361, 9028), (3148, 6771), (4514, 4722)]