213036005

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{20357}}^1$

素因数の和:20405

約数の個数: 32

約数和(自身を含む): 328333824

約数和(自身を除く): 115297819

約数列:

[1, 5, 7, 13, 23, 35, 65, 91, 115, 161, 299, 455, 805, 1495, 2093, 10465, 20357, 101785, 142499, 264641, 468211, 712495, 1323205, 1852487, 2341055, 3277477, 6086743, 9262435, 16387385, 30433715, 42607201, 213036005]

約数ペア:

[(1, 213036005), (5, 42607201), (7, 30433715), (13, 16387385), (23, 9262435), (35, 6086743), (65, 3277477), (91, 2341055), (115, 1852487), (161, 1323205), (299, 712495), (455, 468211), (805, 264641), (1495, 142499), (2093, 101785), (10465, 20357)]