20613015

素因数分解:

$3^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{1427}}^1$

素因数の和:1548

約数の個数: 32

約数和(自身を含む): 37013760

約数和(自身を除く): 16400745

約数列:

[1, 3, 5, 9, 15, 27, 45, 107, 135, 321, 535, 963, 1427, 1605, 2889, 4281, 4815, 7135, 12843, 14445, 21405, 38529, 64215, 152689, 192645, 458067, 763445, 1374201, 2290335, 4122603, 6871005, 20613015]

約数ペア:

[(1, 20613015), (3, 6871005), (5, 4122603), (9, 2290335), (15, 1374201), (27, 763445), (45, 458067), (107, 192645), (135, 152689), (321, 64215), (535, 38529), (963, 21405), (1427, 14445), (1605, 12843), (2889, 7135), (4281, 4815)]