21702824

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{311}}^1$

素因数の和:402

約数の個数: 64

約数和(自身を含む): 48746880

約数和(自身を除く): 27044056

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 61, 88, 104, 122, 143, 244, 286, 311, 488, 572, 622, 671, 793, 1144, 1244, 1342, 1586, 2488, 2684, 3172, 3421, 4043, 5368, 6344, 6842, 8086, 8723, 13684, 16172, 17446, 18971, 27368, 32344, 34892, 37942, 44473, 69784, 75884, 88946, 151768, 177892, 208681, 246623, 355784, 417362, 493246, 834724, 986492, 1669448, 1972984, 2712853, 5425706, 10851412, 21702824]

約数ペア:

[(1, 21702824), (2, 10851412), (4, 5425706), (8, 2712853), (11, 1972984), (13, 1669448), (22, 986492), (26, 834724), (44, 493246), (52, 417362), (61, 355784), (88, 246623), (104, 208681), (122, 177892), (143, 151768), (244, 88946), (286, 75884), (311, 69784), (488, 44473), (572, 37942), (622, 34892), (671, 32344), (793, 27368), (1144, 18971), (1244, 17446), (1342, 16172), (1586, 13684), (2488, 8723), (2684, 8086), (3172, 6842), (3421, 6344), (4043, 5368)]