21581133182

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1291}}^1\times {\mathrm{29123}}^1$

素因数の和:30464

約数の個数: 32

約数和(自身を含む): 37929233664

約数和(自身を除く): 16348100482

約数列:

[1, 2, 7, 14, 41, 82, 287, 574, 1291, 2582, 9037, 18074, 29123, 52931, 58246, 105862, 203861, 370517, 407722, 741034, 1194043, 2388086, 8358301, 16716602, 37597793, 75195586, 263184551, 526369102, 1541509513, 3083019026, 10790566591, 21581133182]

約数ペア:

[(1, 21581133182), (2, 10790566591), (7, 3083019026), (14, 1541509513), (41, 526369102), (82, 263184551), (287, 75195586), (574, 37597793), (1291, 16716602), (2582, 8358301), (9037, 2388086), (18074, 1194043), (29123, 741034), (52931, 407722), (58246, 370517), (105862, 203861)]