21698495

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{463}}^1$

素因数の和:591

約数の個数: 32

約数和(自身を含む): 32428032

約数和(自身を除く): 10729537

約数列:

[1, 5, 7, 13, 35, 65, 91, 103, 455, 463, 515, 721, 1339, 2315, 3241, 3605, 6019, 6695, 9373, 16205, 30095, 42133, 46865, 47689, 210665, 238445, 333823, 619957, 1669115, 3099785, 4339699, 21698495]

約数ペア:

[(1, 21698495), (5, 4339699), (7, 3099785), (13, 1669115), (35, 619957), (65, 333823), (91, 238445), (103, 210665), (455, 47689), (463, 46865), (515, 42133), (721, 30095), (1339, 16205), (2315, 9373), (3241, 6695), (3605, 6019)]