20458450515

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{971}}^1\times {\mathrm{37963}}^1$

素因数の和:38979

約数の個数: 32

約数和(自身を含む): 33653719296

約数和(自身を除く): 13195268781

約数列:

[1, 3, 5, 15, 37, 111, 185, 555, 971, 2913, 4855, 14565, 35927, 37963, 107781, 113889, 179635, 189815, 538905, 569445, 1404631, 4213893, 7023155, 21069465, 36862073, 110586219, 184310365, 552931095, 1363896701, 4091690103, 6819483505, 20458450515]

約数ペア:

[(1, 20458450515), (3, 6819483505), (5, 4091690103), (15, 1363896701), (37, 552931095), (111, 184310365), (185, 110586219), (555, 36862073), (971, 21069465), (2913, 7023155), (4855, 4213893), (14565, 1404631), (35927, 569445), (37963, 538905), (107781, 189815), (113889, 179635)]