20996912170

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{977}}^1\times {\mathrm{165317}}^1$

素因数の和:166314

約数の個数: 32

約数和(自身を含む): 40743613008

約数和(自身を除く): 19746700838

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 977, 1954, 4885, 9770, 12701, 25402, 63505, 127010, 165317, 330634, 826585, 1653170, 2149121, 4298242, 10745605, 21491210, 161514709, 323029418, 807573545, 1615147090, 2099691217, 4199382434, 10498456085, 20996912170]

約数ペア:

[(1, 20996912170), (2, 10498456085), (5, 4199382434), (10, 2099691217), (13, 1615147090), (26, 807573545), (65, 323029418), (130, 161514709), (977, 21491210), (1954, 10745605), (4885, 4298242), (9770, 2149121), (12701, 1653170), (25402, 826585), (63505, 330634), (127010, 165317)]