21365608

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{2503}}^1$

素因数の和:2617

約数の個数: 32

約数和(自身を含む): 44170560

約数和(自身を除く): 22804952

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 97, 194, 388, 776, 1067, 2134, 2503, 4268, 5006, 8536, 10012, 20024, 27533, 55066, 110132, 220264, 242791, 485582, 971164, 1942328, 2670701, 5341402, 10682804, 21365608]

約数ペア:

[(1, 21365608), (2, 10682804), (4, 5341402), (8, 2670701), (11, 1942328), (22, 971164), (44, 485582), (88, 242791), (97, 220264), (194, 110132), (388, 55066), (776, 27533), (1067, 20024), (2134, 10012), (2503, 8536), (4268, 5006)]