21479470

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1987}}^1$

素因数の和:2064

約数の個数: 32

約数和(自身を含む): 41223168

約数和(自身を除く): 19743698

約数列:

[1, 2, 5, 10, 23, 46, 47, 94, 115, 230, 235, 470, 1081, 1987, 2162, 3974, 5405, 9935, 10810, 19870, 45701, 91402, 93389, 186778, 228505, 457010, 466945, 933890, 2147947, 4295894, 10739735, 21479470]

約数ペア:

[(1, 21479470), (2, 10739735), (5, 4295894), (10, 2147947), (23, 933890), (46, 466945), (47, 457010), (94, 228505), (115, 186778), (230, 93389), (235, 91402), (470, 45701), (1081, 19870), (1987, 10810), (2162, 9935), (3974, 5405)]