21503504

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{7187}}^1$

素因数の和:7223

約数の個数: 40

約数和(自身を含む): 48130848

約数和(自身を除く): 26627344

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 68, 88, 136, 176, 187, 272, 374, 748, 1496, 2992, 7187, 14374, 28748, 57496, 79057, 114992, 122179, 158114, 244358, 316228, 488716, 632456, 977432, 1264912, 1343969, 1954864, 2687938, 5375876, 10751752, 21503504]

約数ペア:

[(1, 21503504), (2, 10751752), (4, 5375876), (8, 2687938), (11, 1954864), (16, 1343969), (17, 1264912), (22, 977432), (34, 632456), (44, 488716), (68, 316228), (88, 244358), (136, 158114), (176, 122179), (187, 114992), (272, 79057), (374, 57496), (748, 28748), (1496, 14374), (2992, 7187)]