21085576

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{227}}^1\times {\mathrm{683}}^1$

素因数の和:933

約数の個数: 32

約数和(自身を含む): 42107040

約数和(自身を除く): 21021464

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 227, 454, 683, 908, 1366, 1816, 2732, 3859, 5464, 7718, 11611, 15436, 23222, 30872, 46444, 92888, 155041, 310082, 620164, 1240328, 2635697, 5271394, 10542788, 21085576]

約数ペア:

[(1, 21085576), (2, 10542788), (4, 5271394), (8, 2635697), (17, 1240328), (34, 620164), (68, 310082), (136, 155041), (227, 92888), (454, 46444), (683, 30872), (908, 23222), (1366, 15436), (1816, 11611), (2732, 7718), (3859, 5464)]