18501987

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{137}}^1$

素因数の和:315

約数の個数: 32

約数和(自身を含む): 29145600

約数和(自身を除く): 10643613

約数列:

[1, 3, 7, 21, 59, 109, 137, 177, 327, 411, 413, 763, 959, 1239, 2289, 2877, 6431, 8083, 14933, 19293, 24249, 44799, 45017, 56581, 104531, 135051, 169743, 313593, 881047, 2643141, 6167329, 18501987]

約数ペア:

[(1, 18501987), (3, 6167329), (7, 2643141), (21, 881047), (59, 313593), (109, 169743), (137, 135051), (177, 104531), (327, 56581), (411, 45017), (413, 44799), (763, 24249), (959, 19293), (1239, 14933), (2289, 8083), (2877, 6431)]