20357298

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{617}}^1$

素因数の和:688

約数の個数: 64

約数和(自身を含む): 49835520

約数和(自身を除く): 29478222

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 47, 54, 78, 94, 117, 141, 234, 282, 351, 423, 611, 617, 702, 846, 1222, 1234, 1269, 1833, 1851, 2538, 3666, 3702, 5499, 5553, 8021, 10998, 11106, 16042, 16497, 16659, 24063, 28999, 32994, 33318, 48126, 57998, 72189, 86997, 144378, 173994, 216567, 260991, 376987, 433134, 521982, 753974, 782973, 1130961, 1565946, 2261922, 3392883, 6785766, 10178649, 20357298]

約数ペア:

[(1, 20357298), (2, 10178649), (3, 6785766), (6, 3392883), (9, 2261922), (13, 1565946), (18, 1130961), (26, 782973), (27, 753974), (39, 521982), (47, 433134), (54, 376987), (78, 260991), (94, 216567), (117, 173994), (141, 144378), (234, 86997), (282, 72189), (351, 57998), (423, 48126), (611, 33318), (617, 32994), (702, 28999), (846, 24063), (1222, 16659), (1234, 16497), (1269, 16042), (1833, 11106), (1851, 10998), (2538, 8021), (3666, 5553), (3702, 5499)]