31407986

素因数分解:

$2^1\times {\mathrm{29}}^2\times {\mathrm{71}}^1\times {\mathrm{263}}^1$

素因数の和:394

約数の個数: 24

約数和(自身を含む): 49667904

約数和(自身を除く): 18259918

約数列:

[1, 2, 29, 58, 71, 142, 263, 526, 841, 1682, 2059, 4118, 7627, 15254, 18673, 37346, 59711, 119422, 221183, 442366, 541517, 1083034, 15703993, 31407986]

約数ペア:

[(1, 31407986), (2, 15703993), (29, 1083034), (58, 541517), (71, 442366), (142, 221183), (263, 119422), (526, 59711), (841, 37346), (1682, 18673), (2059, 15254), (4118, 7627)]