21819160

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2917}}^1$

素因数の和:2956

約数の個数: 64

約数和(自身を含む): 56725920

約数和(自身を除く): 34906760

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 187, 220, 340, 374, 440, 680, 748, 935, 1496, 1870, 2917, 3740, 5834, 7480, 11668, 14585, 23336, 29170, 32087, 49589, 58340, 64174, 99178, 116680, 128348, 160435, 198356, 247945, 256696, 320870, 396712, 495890, 545479, 641740, 991780, 1090958, 1283480, 1983560, 2181916, 2727395, 4363832, 5454790, 10909580, 21819160]

約数ペア:

[(1, 21819160), (2, 10909580), (4, 5454790), (5, 4363832), (8, 2727395), (10, 2181916), (11, 1983560), (17, 1283480), (20, 1090958), (22, 991780), (34, 641740), (40, 545479), (44, 495890), (55, 396712), (68, 320870), (85, 256696), (88, 247945), (110, 198356), (136, 160435), (170, 128348), (187, 116680), (220, 99178), (340, 64174), (374, 58340), (440, 49589), (680, 32087), (748, 29170), (935, 23336), (1496, 14585), (1870, 11668), (2917, 7480), (3740, 5834)]