1987331367

素因数分解:

$3^1\times 7^3\times {\mathrm{1931323}}^1$

素因数の和:1931347

約数の個数: 16

約数和(自身を含む): 3090118400

約数和(自身を除く): 1102787033

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 1931323, 5793969, 13519261, 40557783, 94634827, 283904481, 662443789, 1987331367]

約数ペア:

[(1, 1987331367), (3, 662443789), (7, 283904481), (21, 94634827), (49, 40557783), (147, 13519261), (343, 5793969), (1029, 1931323)]