21451144

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1103}}^1$

素因数の和:1150

約数の個数: 64

約数和(自身を含む): 50077440

約数和(自身を除く): 28626296

約数列:

[1, 2, 4, 8, 11, 13, 17, 22, 26, 34, 44, 52, 68, 88, 104, 136, 143, 187, 221, 286, 374, 442, 572, 748, 884, 1103, 1144, 1496, 1768, 2206, 2431, 4412, 4862, 8824, 9724, 12133, 14339, 18751, 19448, 24266, 28678, 37502, 48532, 57356, 75004, 97064, 114712, 150008, 157729, 206261, 243763, 315458, 412522, 487526, 630916, 825044, 975052, 1261832, 1650088, 1950104, 2681393, 5362786, 10725572, 21451144]

約数ペア:

[(1, 21451144), (2, 10725572), (4, 5362786), (8, 2681393), (11, 1950104), (13, 1650088), (17, 1261832), (22, 975052), (26, 825044), (34, 630916), (44, 487526), (52, 412522), (68, 315458), (88, 243763), (104, 206261), (136, 157729), (143, 150008), (187, 114712), (221, 97064), (286, 75004), (374, 57356), (442, 48532), (572, 37502), (748, 28678), (884, 24266), (1103, 19448), (1144, 18751), (1496, 14339), (1768, 12133), (2206, 9724), (2431, 8824), (4412, 4862)]