21151854

素因数分解:

$2^1\times 3^4\times {\mathrm{59}}^1\times {\mathrm{2213}}^1$

素因数の和:2286

約数の個数: 40

約数和(自身を含む): 48220920

約数和(自身を除く): 27069066

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 59, 81, 118, 162, 177, 354, 531, 1062, 1593, 2213, 3186, 4426, 4779, 6639, 9558, 13278, 19917, 39834, 59751, 119502, 130567, 179253, 261134, 358506, 391701, 783402, 1175103, 2350206, 3525309, 7050618, 10575927, 21151854]

約数ペア:

[(1, 21151854), (2, 10575927), (3, 7050618), (6, 3525309), (9, 2350206), (18, 1175103), (27, 783402), (54, 391701), (59, 358506), (81, 261134), (118, 179253), (162, 130567), (177, 119502), (354, 59751), (531, 39834), (1062, 19917), (1593, 13278), (2213, 9558), (3186, 6639), (4426, 4779)]