21982070

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{491}}^1$

素因数の和:557

約数の個数: 48

約数和(自身を含む): 44758224

約数和(自身を除く): 22776154

約数列:

[1, 2, 5, 10, 11, 22, 37, 55, 74, 110, 121, 185, 242, 370, 407, 491, 605, 814, 982, 1210, 2035, 2455, 4070, 4477, 4910, 5401, 8954, 10802, 18167, 22385, 27005, 36334, 44770, 54010, 59411, 90835, 118822, 181670, 199837, 297055, 399674, 594110, 999185, 1998370, 2198207, 4396414, 10991035, 21982070]

約数ペア:

[(1, 21982070), (2, 10991035), (5, 4396414), (10, 2198207), (11, 1998370), (22, 999185), (37, 594110), (55, 399674), (74, 297055), (110, 199837), (121, 181670), (185, 118822), (242, 90835), (370, 59411), (407, 54010), (491, 44770), (605, 36334), (814, 27005), (982, 22385), (1210, 18167), (2035, 10802), (2455, 8954), (4070, 5401), (4477, 4910)]