21658070

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1$

素因数の和:317

約数の個数: 64

約数和(自身を含む): 47278080

約数和(自身を除く): 25620010

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 47, 58, 70, 94, 145, 203, 227, 235, 290, 329, 406, 454, 470, 658, 1015, 1135, 1363, 1589, 1645, 2030, 2270, 2726, 3178, 3290, 6583, 6815, 7945, 9541, 10669, 13166, 13630, 15890, 19082, 21338, 32915, 46081, 47705, 53345, 65830, 74683, 92162, 95410, 106690, 149366, 230405, 309401, 373415, 460810, 618802, 746830, 1547005, 2165807, 3094010, 4331614, 10829035, 21658070]

約数ペア:

[(1, 21658070), (2, 10829035), (5, 4331614), (7, 3094010), (10, 2165807), (14, 1547005), (29, 746830), (35, 618802), (47, 460810), (58, 373415), (70, 309401), (94, 230405), (145, 149366), (203, 106690), (227, 95410), (235, 92162), (290, 74683), (329, 65830), (406, 53345), (454, 47705), (470, 46081), (658, 32915), (1015, 21338), (1135, 19082), (1363, 15890), (1589, 13630), (1645, 13166), (2030, 10669), (2270, 9541), (2726, 7945), (3178, 6815), (3290, 6583)]