74340721

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:313

約数の個数: 32

約数和(自身を含む): 94590720

約数和(自身を除く): 20249999

約数列:

[1, 7, 13, 67, 89, 91, 137, 469, 623, 871, 959, 1157, 1781, 5963, 6097, 8099, 9179, 12193, 12467, 41741, 64253, 77519, 85351, 119327, 158509, 542633, 816931, 835289, 1109563, 5718517, 10620103, 74340721]

約数ペア:

[(1, 74340721), (7, 10620103), (13, 5718517), (67, 1109563), (89, 835289), (91, 816931), (137, 542633), (469, 158509), (623, 119327), (871, 85351), (959, 77519), (1157, 64253), (1781, 41741), (5963, 12467), (6097, 12193), (8099, 9179)]