20857464

素因数分解:

$2^3\times 3^2\times {\mathrm{127}}^1\times {\mathrm{2281}}^1$

素因数の和:2420

約数の個数: 48

約数和(自身を含む): 56958720

約数和(自身を除く): 36101256

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 127, 254, 381, 508, 762, 1016, 1143, 1524, 2281, 2286, 3048, 4562, 4572, 6843, 9124, 9144, 13686, 18248, 20529, 27372, 41058, 54744, 82116, 164232, 289687, 579374, 869061, 1158748, 1738122, 2317496, 2607183, 3476244, 5214366, 6952488, 10428732, 20857464]

約数ペア:

[(1, 20857464), (2, 10428732), (3, 6952488), (4, 5214366), (6, 3476244), (8, 2607183), (9, 2317496), (12, 1738122), (18, 1158748), (24, 869061), (36, 579374), (72, 289687), (127, 164232), (254, 82116), (381, 54744), (508, 41058), (762, 27372), (1016, 20529), (1143, 18248), (1524, 13686), (2281, 9144), (2286, 9124), (3048, 6843), (4562, 4572)]