20922057

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1$

素因数の和:244

約数の個数: 48

約数和(自身を含む): 34856640

約数和(自身を除く): 13934583

約数列:

[1, 3, 9, 13, 27, 37, 39, 81, 111, 117, 179, 243, 333, 351, 481, 537, 999, 1053, 1443, 1611, 2327, 2997, 3159, 4329, 4833, 6623, 6981, 8991, 12987, 14499, 19869, 20943, 38961, 43497, 59607, 62829, 86099, 116883, 178821, 188487, 258297, 536463, 565461, 774891, 1609389, 2324673, 6974019, 20922057]

約数ペア:

[(1, 20922057), (3, 6974019), (9, 2324673), (13, 1609389), (27, 774891), (37, 565461), (39, 536463), (81, 258297), (111, 188487), (117, 178821), (179, 116883), (243, 86099), (333, 62829), (351, 59607), (481, 43497), (537, 38961), (999, 20943), (1053, 19869), (1443, 14499), (1611, 12987), (2327, 8991), (2997, 6981), (3159, 6623), (4329, 4833)]