20824986

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{887}}^1$

素因数の和:955

約数の個数: 64

約数和(自身を含む): 52512768

約数和(自身を除く): 31687782

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 43, 78, 86, 91, 129, 182, 258, 273, 301, 546, 559, 602, 887, 903, 1118, 1677, 1774, 1806, 2661, 3354, 3913, 5322, 6209, 7826, 11531, 11739, 12418, 18627, 23062, 23478, 34593, 37254, 38141, 69186, 76282, 80717, 114423, 161434, 228846, 242151, 266987, 484302, 495833, 533974, 800961, 991666, 1487499, 1601922, 2974998, 3470831, 6941662, 10412493, 20824986]

約数ペア:

[(1, 20824986), (2, 10412493), (3, 6941662), (6, 3470831), (7, 2974998), (13, 1601922), (14, 1487499), (21, 991666), (26, 800961), (39, 533974), (42, 495833), (43, 484302), (78, 266987), (86, 242151), (91, 228846), (129, 161434), (182, 114423), (258, 80717), (273, 76282), (301, 69186), (546, 38141), (559, 37254), (602, 34593), (887, 23478), (903, 23062), (1118, 18627), (1677, 12418), (1774, 11739), (1806, 11531), (2661, 7826), (3354, 6209), (3913, 5322)]