21000604359

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1489}}^1\times {\mathrm{23159}}^1$

素因数の和:24687

約数の個数: 32

約数和(自身を含む): 33128064000

約数和(自身を除く): 12127459641

約数列:

[1, 3, 7, 21, 29, 87, 203, 609, 1489, 4467, 10423, 23159, 31269, 43181, 69477, 129543, 162113, 302267, 486339, 671611, 906801, 2014833, 4701277, 14103831, 34483751, 103451253, 241386257, 724158771, 1000028779, 3000086337, 7000201453, 21000604359]

約数ペア:

[(1, 21000604359), (3, 7000201453), (7, 3000086337), (21, 1000028779), (29, 724158771), (87, 241386257), (203, 103451253), (609, 34483751), (1489, 14103831), (4467, 4701277), (10423, 2014833), (23159, 906801), (31269, 671611), (43181, 486339), (69477, 302267), (129543, 162113)]