19912304817

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{38815409}}^1$

素因数の和:38815437

約数の個数: 16

約数和(自身を含む): 31052328000

約数和(自身を除く): 11140023183

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 38815409, 116446227, 349338681, 737492771, 1048016043, 2212478313, 6637434939, 19912304817]

約数ペア:

[(1, 19912304817), (3, 6637434939), (9, 2212478313), (19, 1048016043), (27, 737492771), (57, 349338681), (171, 116446227), (513, 38815409)]