21205072

素因数分解:

$2^4\times 7^1\times {\mathrm{59}}^1\times {\mathrm{3209}}^1$

素因数の和:3283

約数の個数: 40

約数和(自身を含む): 47764800

約数和(自身を除く): 26559728

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 59, 112, 118, 236, 413, 472, 826, 944, 1652, 3209, 3304, 6418, 6608, 12836, 22463, 25672, 44926, 51344, 89852, 179704, 189331, 359408, 378662, 757324, 1325317, 1514648, 2650634, 3029296, 5301268, 10602536, 21205072]

約数ペア:

[(1, 21205072), (2, 10602536), (4, 5301268), (7, 3029296), (8, 2650634), (14, 1514648), (16, 1325317), (28, 757324), (56, 378662), (59, 359408), (112, 189331), (118, 179704), (236, 89852), (413, 51344), (472, 44926), (826, 25672), (944, 22463), (1652, 12836), (3209, 6608), (3304, 6418)]