19220955

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{409}}^1$

素因数の和:671

約数の個数: 32

約数和(自身を含む): 33337920

約数和(自身を除く): 14116965

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 241, 409, 723, 1205, 1227, 2045, 3133, 3615, 5317, 6135, 9399, 15665, 15951, 26585, 46995, 79755, 98569, 295707, 492845, 1281397, 1478535, 3844191, 6406985, 19220955]

約数ペア:

[(1, 19220955), (3, 6406985), (5, 3844191), (13, 1478535), (15, 1281397), (39, 492845), (65, 295707), (195, 98569), (241, 79755), (409, 46995), (723, 26585), (1205, 15951), (1227, 15665), (2045, 9399), (3133, 6135), (3615, 5317)]