21330056

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{6551}}^1$

素因数の和:6605

約数の個数: 32

約数和(自身を含む): 44815680

約数和(自身を除く): 23485624

約数列:

[1, 2, 4, 8, 11, 22, 37, 44, 74, 88, 148, 296, 407, 814, 1628, 3256, 6551, 13102, 26204, 52408, 72061, 144122, 242387, 288244, 484774, 576488, 969548, 1939096, 2666257, 5332514, 10665028, 21330056]

約数ペア:

[(1, 21330056), (2, 10665028), (4, 5332514), (8, 2666257), (11, 1939096), (22, 969548), (37, 576488), (44, 484774), (74, 288244), (88, 242387), (148, 144122), (296, 72061), (407, 52408), (814, 26204), (1628, 13102), (3256, 6551)]