19788855

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1399}}^1$

素因数の和:1471

約数の個数: 32

約数和(自身を含む): 33868800

約数和(自身を除く): 14079945

約数列:

[1, 3, 5, 15, 23, 41, 69, 115, 123, 205, 345, 615, 943, 1399, 2829, 4197, 4715, 6995, 14145, 20985, 32177, 57359, 96531, 160885, 172077, 286795, 482655, 860385, 1319257, 3957771, 6596285, 19788855]

約数ペア:

[(1, 19788855), (3, 6596285), (5, 3957771), (15, 1319257), (23, 860385), (41, 482655), (69, 286795), (115, 172077), (123, 160885), (205, 96531), (345, 57359), (615, 32177), (943, 20985), (1399, 14145), (2829, 6995), (4197, 4715)]