21158816

素因数分解:

$2^5\times 7^1\times {\mathrm{59}}^1\times {\mathrm{1601}}^1$

素因数の和:1677

約数の個数: 48

約数和(自身を含む): 48444480

約数和(自身を除く): 27285664

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 59, 112, 118, 224, 236, 413, 472, 826, 944, 1601, 1652, 1888, 3202, 3304, 6404, 6608, 11207, 12808, 13216, 22414, 25616, 44828, 51232, 89656, 94459, 179312, 188918, 358624, 377836, 661213, 755672, 1322426, 1511344, 2644852, 3022688, 5289704, 10579408, 21158816]

約数ペア:

[(1, 21158816), (2, 10579408), (4, 5289704), (7, 3022688), (8, 2644852), (14, 1511344), (16, 1322426), (28, 755672), (32, 661213), (56, 377836), (59, 358624), (112, 188918), (118, 179312), (224, 94459), (236, 89656), (413, 51232), (472, 44828), (826, 25616), (944, 22414), (1601, 13216), (1652, 12808), (1888, 11207), (3202, 6608), (3304, 6404)]