39997998

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1667}}^1$

素因数の和:1749

約数の個数: 48

約数和(自身を含む): 91593216

約数和(自身を除く): 51595218

約数列:

[1, 2, 3, 6, 9, 18, 31, 43, 62, 86, 93, 129, 186, 258, 279, 387, 558, 774, 1333, 1667, 2666, 3334, 3999, 5001, 7998, 10002, 11997, 15003, 23994, 30006, 51677, 71681, 103354, 143362, 155031, 215043, 310062, 430086, 465093, 645129, 930186, 1290258, 2222111, 4444222, 6666333, 13332666, 19998999, 39997998]

約数ペア:

[(1, 39997998), (2, 19998999), (3, 13332666), (6, 6666333), (9, 4444222), (18, 2222111), (31, 1290258), (43, 930186), (62, 645129), (86, 465093), (93, 430086), (129, 310062), (186, 215043), (258, 155031), (279, 143362), (387, 103354), (558, 71681), (774, 51677), (1333, 30006), (1667, 23994), (2666, 15003), (3334, 11997), (3999, 10002), (5001, 7998)]