21180843

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{853}}^1$

素因数の和:979

約数の個数: 24

約数和(自身を含む): 31973760

約数和(自身を除く): 10792917

約数列:

[1, 3, 9, 31, 89, 93, 267, 279, 801, 853, 2559, 2759, 7677, 8277, 24831, 26443, 75917, 79329, 227751, 237987, 683253, 2353427, 7060281, 21180843]

約数ペア:

[(1, 21180843), (3, 7060281), (9, 2353427), (31, 683253), (89, 237987), (93, 227751), (267, 79329), (279, 75917), (801, 26443), (853, 24831), (2559, 8277), (2759, 7677)]