21357056

素因数分解:

$2^9\times 7^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:185

約数の個数: 80

約数和(自身を含む): 50086080

約数和(自身を除く): 28729024

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 59, 64, 101, 112, 118, 128, 202, 224, 236, 256, 404, 413, 448, 472, 512, 707, 808, 826, 896, 944, 1414, 1616, 1652, 1792, 1888, 2828, 3232, 3304, 3584, 3776, 5656, 5959, 6464, 6608, 7552, 11312, 11918, 12928, 13216, 15104, 22624, 23836, 25856, 26432, 30208, 41713, 45248, 47672, 51712, 52864, 83426, 90496, 95344, 105728, 166852, 180992, 190688, 211456, 333704, 361984, 381376, 667408, 762752, 1334816, 1525504, 2669632, 3051008, 5339264, 10678528, 21357056]

約数ペア:

[(1, 21357056), (2, 10678528), (4, 5339264), (7, 3051008), (8, 2669632), (14, 1525504), (16, 1334816), (28, 762752), (32, 667408), (56, 381376), (59, 361984), (64, 333704), (101, 211456), (112, 190688), (118, 180992), (128, 166852), (202, 105728), (224, 95344), (236, 90496), (256, 83426), (404, 52864), (413, 51712), (448, 47672), (472, 45248), (512, 41713), (707, 30208), (808, 26432), (826, 25856), (896, 23836), (944, 22624), (1414, 15104), (1616, 13216), (1652, 12928), (1792, 11918), (1888, 11312), (2828, 7552), (3232, 6608), (3304, 6464), (3584, 5959), (3776, 5656)]