21031480

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{27673}}^1$

素因数の和:27703

約数の個数: 32

約数和(自身を含む): 49813200

約数和(自身を除く): 28781720

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 27673, 55346, 110692, 138365, 221384, 276730, 525787, 553460, 1051574, 1106920, 2103148, 2628935, 4206296, 5257870, 10515740, 21031480]

約数ペア:

[(1, 21031480), (2, 10515740), (4, 5257870), (5, 4206296), (8, 2628935), (10, 2103148), (19, 1106920), (20, 1051574), (38, 553460), (40, 525787), (76, 276730), (95, 221384), (152, 138365), (190, 110692), (380, 55346), (760, 27673)]