21499016

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2053}}^1$

素因数の和:2094

約数の個数: 64

約数和(自身を含む): 53239680

約数和(自身を除く): 31740664

約数列:

[1, 2, 4, 7, 8, 11, 14, 17, 22, 28, 34, 44, 56, 68, 77, 88, 119, 136, 154, 187, 238, 308, 374, 476, 616, 748, 952, 1309, 1496, 2053, 2618, 4106, 5236, 8212, 10472, 14371, 16424, 22583, 28742, 34901, 45166, 57484, 69802, 90332, 114968, 139604, 158081, 180664, 244307, 279208, 316162, 383911, 488614, 632324, 767822, 977228, 1264648, 1535644, 1954456, 2687377, 3071288, 5374754, 10749508, 21499016]

約数ペア:

[(1, 21499016), (2, 10749508), (4, 5374754), (7, 3071288), (8, 2687377), (11, 1954456), (14, 1535644), (17, 1264648), (22, 977228), (28, 767822), (34, 632324), (44, 488614), (56, 383911), (68, 316162), (77, 279208), (88, 244307), (119, 180664), (136, 158081), (154, 139604), (187, 114968), (238, 90332), (308, 69802), (374, 57484), (476, 45166), (616, 34901), (748, 28742), (952, 22583), (1309, 16424), (1496, 14371), (2053, 10472), (2618, 8212), (4106, 5236)]