21555248

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{9421}}^1$

素因数の和:9453

約数の個数: 40

約数和(自身を含む): 49069776

約数和(自身を除く): 27514528

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 143, 176, 208, 286, 572, 1144, 2288, 9421, 18842, 37684, 75368, 103631, 122473, 150736, 207262, 244946, 414524, 489892, 829048, 979784, 1347203, 1658096, 1959568, 2694406, 5388812, 10777624, 21555248]

約数ペア:

[(1, 21555248), (2, 10777624), (4, 5388812), (8, 2694406), (11, 1959568), (13, 1658096), (16, 1347203), (22, 979784), (26, 829048), (44, 489892), (52, 414524), (88, 244946), (104, 207262), (143, 150736), (176, 122473), (208, 103631), (286, 75368), (572, 37684), (1144, 18842), (2288, 9421)]