39991887

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{233}}^1$

素因数の和:421

約数の個数: 40

約数和(自身を含む): 65008944

約数和(自身を除く): 25017057

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 163, 233, 351, 489, 699, 1053, 1467, 2097, 2119, 3029, 4401, 6291, 6357, 9087, 13203, 18873, 19071, 27261, 37979, 57213, 81783, 113937, 171639, 245349, 341811, 493727, 1025433, 1481181, 3076299, 4443543, 13330629, 39991887]

約数ペア:

[(1, 39991887), (3, 13330629), (9, 4443543), (13, 3076299), (27, 1481181), (39, 1025433), (81, 493727), (117, 341811), (163, 245349), (233, 171639), (351, 113937), (489, 81783), (699, 57213), (1053, 37979), (1467, 27261), (2097, 19071), (2119, 18873), (3029, 13203), (4401, 9087), (6291, 6357)]