18911422

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^2$

素因数の和:312

約数の個数: 24

約数和(自身を含む): 31127400

約数和(自身を除く): 12215978

約数列:

[1, 2, 19, 29, 38, 58, 131, 262, 551, 1102, 2489, 3799, 4978, 7598, 17161, 34322, 72181, 144362, 326059, 497669, 652118, 995338, 9455711, 18911422]

約数ペア:

[(1, 18911422), (2, 9455711), (19, 995338), (29, 652118), (38, 497669), (58, 326059), (131, 144362), (262, 72181), (551, 34322), (1102, 17161), (2489, 7598), (3799, 4978)]