21579090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{55331}}^1$

素因数の和:55354

約数の個数: 32

約数和(自身を含む): 55774656

約数和(自身を除く): 34195566

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 55331, 110662, 165993, 276655, 331986, 553310, 719303, 829965, 1438606, 1659930, 2157909, 3596515, 4315818, 7193030, 10789545, 21579090]

約数ペア:

[(1, 21579090), (2, 10789545), (3, 7193030), (5, 4315818), (6, 3596515), (10, 2157909), (13, 1659930), (15, 1438606), (26, 829965), (30, 719303), (39, 553310), (65, 331986), (78, 276655), (130, 165993), (195, 110662), (390, 55331)]