19901916

素因数分解:

$2^2\times 3^3\times {\mathrm{127}}^1\times {\mathrm{1451}}^1$

素因数の和:1591

約数の個数: 48

約数和(自身を含む): 52039680

約数和(自身を除く): 32137764

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 127, 254, 381, 508, 762, 1143, 1451, 1524, 2286, 2902, 3429, 4353, 4572, 5804, 6858, 8706, 13059, 13716, 17412, 26118, 39177, 52236, 78354, 156708, 184277, 368554, 552831, 737108, 1105662, 1658493, 2211324, 3316986, 4975479, 6633972, 9950958, 19901916]

約数ペア:

[(1, 19901916), (2, 9950958), (3, 6633972), (4, 4975479), (6, 3316986), (9, 2211324), (12, 1658493), (18, 1105662), (27, 737108), (36, 552831), (54, 368554), (108, 184277), (127, 156708), (254, 78354), (381, 52236), (508, 39177), (762, 26118), (1143, 17412), (1451, 13716), (1524, 13059), (2286, 8706), (2902, 6858), (3429, 5804), (4353, 4572)]