2021030595

素因数分解:

$3^4\times 5^1\times {\mathrm{4990199}}^1$

素因数の和:4990216

約数の個数: 20

約数和(自身を含む): 3622885200

約数和(自身を除く): 1601854605

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 4990199, 14970597, 24950995, 44911791, 74852985, 134735373, 224558955, 404206119, 673676865, 2021030595]

約数ペア:

[(1, 2021030595), (3, 673676865), (5, 404206119), (9, 224558955), (15, 134735373), (27, 74852985), (45, 44911791), (81, 24950995), (135, 14970597), (405, 4990199)]