19993515

素因数分解:

$3^1\times 5^1\times {\mathrm{557}}^1\times {\mathrm{2393}}^1$

素因数の和:2958

約数の個数: 16

約数和(自身を含む): 32060448

約数和(自身を除く): 12066933

約数列:

[1, 3, 5, 15, 557, 1671, 2393, 2785, 7179, 8355, 11965, 35895, 1332901, 3998703, 6664505, 19993515]

約数ペア:

[(1, 19993515), (3, 6664505), (5, 3998703), (15, 1332901), (557, 35895), (1671, 11965), (2393, 8355), (2785, 7179)]