21697590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{787}}^1\times {\mathrm{919}}^1$

素因数の和:1716

約数の個数: 32

約数和(自身を含む): 52197120

約数和(自身を除く): 30499530

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 787, 919, 1574, 1838, 2361, 2757, 3935, 4595, 4722, 5514, 7870, 9190, 11805, 13785, 23610, 27570, 723253, 1446506, 2169759, 3616265, 4339518, 7232530, 10848795, 21697590]

約数ペア:

[(1, 21697590), (2, 10848795), (3, 7232530), (5, 4339518), (6, 3616265), (10, 2169759), (15, 1446506), (30, 723253), (787, 27570), (919, 23610), (1574, 13785), (1838, 11805), (2361, 9190), (2757, 7870), (3935, 5514), (4595, 4722)]