21105570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{17159}}^1$

素因数の和:17210

約数の個数: 32

約数和(自身を含む): 51891840

約数和(自身を除く): 30786270

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 41, 82, 123, 205, 246, 410, 615, 1230, 17159, 34318, 51477, 85795, 102954, 171590, 257385, 514770, 703519, 1407038, 2110557, 3517595, 4221114, 7035190, 10552785, 21105570]

約数ペア:

[(1, 21105570), (2, 10552785), (3, 7035190), (5, 4221114), (6, 3517595), (10, 2110557), (15, 1407038), (30, 703519), (41, 514770), (82, 257385), (123, 171590), (205, 102954), (246, 85795), (410, 51477), (615, 34318), (1230, 17159)]