21921834

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1$

素因数の和:291

約数の個数: 64

約数和(自身を含む): 50429952

約数和(自身を除く): 28508118

約数列:

[1, 2, 3, 6, 11, 22, 33, 37, 47, 66, 74, 94, 111, 141, 191, 222, 282, 382, 407, 517, 573, 814, 1034, 1146, 1221, 1551, 1739, 2101, 2442, 3102, 3478, 4202, 5217, 6303, 7067, 8977, 10434, 12606, 14134, 17954, 19129, 21201, 26931, 38258, 42402, 53862, 57387, 77737, 98747, 114774, 155474, 197494, 233211, 296241, 332149, 466422, 592482, 664298, 996447, 1992894, 3653639, 7307278, 10960917, 21921834]

約数ペア:

[(1, 21921834), (2, 10960917), (3, 7307278), (6, 3653639), (11, 1992894), (22, 996447), (33, 664298), (37, 592482), (47, 466422), (66, 332149), (74, 296241), (94, 233211), (111, 197494), (141, 155474), (191, 114774), (222, 98747), (282, 77737), (382, 57387), (407, 53862), (517, 42402), (573, 38258), (814, 26931), (1034, 21201), (1146, 19129), (1221, 17954), (1551, 14134), (1739, 12606), (2101, 10434), (2442, 8977), (3102, 7067), (3478, 6303), (4202, 5217)]