21036390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{7229}}^1$

素因数の和:7336

約数の個数: 32

約数和(自身を含む): 51014880

約数和(自身を除く): 29978490

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 97, 194, 291, 485, 582, 970, 1455, 2910, 7229, 14458, 21687, 36145, 43374, 72290, 108435, 216870, 701213, 1402426, 2103639, 3506065, 4207278, 7012130, 10518195, 21036390]

約数ペア:

[(1, 21036390), (2, 10518195), (3, 7012130), (5, 4207278), (6, 3506065), (10, 2103639), (15, 1402426), (30, 701213), (97, 216870), (194, 108435), (291, 72290), (485, 43374), (582, 36145), (970, 21687), (1455, 14458), (2910, 7229)]