4018815

素因数分解:

$3^4\times 5^1\times {\mathrm{9923}}^1$

素因数の和:9940

約数の個数: 20

約数和(自身を含む): 7204824

約数和(自身を除く): 3186009

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 9923, 29769, 49615, 89307, 148845, 267921, 446535, 803763, 1339605, 4018815]

約数ペア:

[(1, 4018815), (3, 1339605), (5, 803763), (9, 446535), (15, 267921), (27, 148845), (45, 89307), (81, 49615), (135, 29769), (405, 9923)]