31154487

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{821}}^1$

素因数の和:983

約数の個数: 32

約数和(自身を含む): 51555840

約数和(自身を除く): 20401353

約数列:

[1, 3, 7, 13, 21, 39, 91, 139, 273, 417, 821, 973, 1807, 2463, 2919, 5421, 5747, 10673, 12649, 17241, 32019, 37947, 74711, 114119, 224133, 342357, 798833, 1483547, 2396499, 4450641, 10384829, 31154487]

約数ペア:

[(1, 31154487), (3, 10384829), (7, 4450641), (13, 2396499), (21, 1483547), (39, 798833), (91, 342357), (139, 224133), (273, 114119), (417, 74711), (821, 37947), (973, 32019), (1807, 17241), (2463, 12649), (2919, 10673), (5421, 5747)]