20318922

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1223}}^1$

素因数の和:1315

約数の個数: 48

約数和(自身を含む): 48117888

約数和(自身を除く): 27798966

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 71, 78, 117, 142, 213, 234, 426, 639, 923, 1223, 1278, 1846, 2446, 2769, 3669, 5538, 7338, 8307, 11007, 15899, 16614, 22014, 31798, 47697, 86833, 95394, 143091, 173666, 260499, 286182, 520998, 781497, 1128829, 1562994, 2257658, 3386487, 6772974, 10159461, 20318922]

約数ペア:

[(1, 20318922), (2, 10159461), (3, 6772974), (6, 3386487), (9, 2257658), (13, 1562994), (18, 1128829), (26, 781497), (39, 520998), (71, 286182), (78, 260499), (117, 173666), (142, 143091), (213, 95394), (234, 86833), (426, 47697), (639, 31798), (923, 22014), (1223, 16614), (1278, 15899), (1846, 11007), (2446, 8307), (2769, 7338), (3669, 5538)]