21057732

素因数分解:

$2^2\times 3^4\times {\mathrm{103}}^1\times {\mathrm{631}}^1$

素因数の和:750

約数の個数: 60

約数和(自身を含む): 55671616

約数和(自身を除く): 34613884

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 103, 108, 162, 206, 309, 324, 412, 618, 631, 927, 1236, 1262, 1854, 1893, 2524, 2781, 3708, 3786, 5562, 5679, 7572, 8343, 11124, 11358, 16686, 17037, 22716, 33372, 34074, 51111, 64993, 68148, 102222, 129986, 194979, 204444, 259972, 389958, 584937, 779916, 1169874, 1754811, 2339748, 3509622, 5264433, 7019244, 10528866, 21057732]

約数ペア:

[(1, 21057732), (2, 10528866), (3, 7019244), (4, 5264433), (6, 3509622), (9, 2339748), (12, 1754811), (18, 1169874), (27, 779916), (36, 584937), (54, 389958), (81, 259972), (103, 204444), (108, 194979), (162, 129986), (206, 102222), (309, 68148), (324, 64993), (412, 51111), (618, 34074), (631, 33372), (927, 22716), (1236, 17037), (1262, 16686), (1854, 11358), (1893, 11124), (2524, 8343), (2781, 7572), (3708, 5679), (3786, 5562)]