20121372

素因数分解:

$2^2\times 3^5\times {\mathrm{127}}^1\times {\mathrm{163}}^1$

素因数の和:309

約数の個数: 72

約数和(自身を含む): 53487616

約数和(自身を除く): 33366244

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 127, 162, 163, 243, 254, 324, 326, 381, 486, 489, 508, 652, 762, 972, 978, 1143, 1467, 1524, 1956, 2286, 2934, 3429, 4401, 4572, 5868, 6858, 8802, 10287, 13203, 13716, 17604, 20574, 20701, 26406, 30861, 39609, 41148, 41402, 52812, 61722, 62103, 79218, 82804, 123444, 124206, 158436, 186309, 248412, 372618, 558927, 745236, 1117854, 1676781, 2235708, 3353562, 5030343, 6707124, 10060686, 20121372]

約数ペア:

[(1, 20121372), (2, 10060686), (3, 6707124), (4, 5030343), (6, 3353562), (9, 2235708), (12, 1676781), (18, 1117854), (27, 745236), (36, 558927), (54, 372618), (81, 248412), (108, 186309), (127, 158436), (162, 124206), (163, 123444), (243, 82804), (254, 79218), (324, 62103), (326, 61722), (381, 52812), (486, 41402), (489, 41148), (508, 39609), (652, 30861), (762, 26406), (972, 20701), (978, 20574), (1143, 17604), (1467, 13716), (1524, 13203), (1956, 10287), (2286, 8802), (2934, 6858), (3429, 5868), (4401, 4572)]