20625276847

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{19603}}^1$

素因数の和:19783

約数の個数: 32

約数和(自身を含む): 25068026880

約数和(自身を除く): 4442750033

約数列:

[1, 7, 29, 71, 73, 203, 497, 511, 2059, 2117, 5183, 14413, 14819, 19603, 36281, 137221, 150307, 568487, 1052149, 1391813, 1431019, 3979409, 9742691, 10017133, 40362577, 41499551, 101602349, 282538039, 290496857, 711216443, 2946468121, 20625276847]

約数ペア:

[(1, 20625276847), (7, 2946468121), (29, 711216443), (71, 290496857), (73, 282538039), (203, 101602349), (497, 41499551), (511, 40362577), (2059, 10017133), (2117, 9742691), (5183, 3979409), (14413, 1431019), (14819, 1391813), (19603, 1052149), (36281, 568487), (137221, 150307)]