20217015

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4937}}^1$

素因数の和:4968

約数の個数: 48

約数和(自身を含む): 43138368

約数和(自身を除く): 22921353

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 63, 65, 91, 105, 117, 195, 273, 315, 455, 585, 819, 1365, 4095, 4937, 14811, 24685, 34559, 44433, 64181, 74055, 103677, 172795, 192543, 222165, 311031, 320905, 449267, 518385, 577629, 962715, 1347801, 1555155, 2246335, 2888145, 4043403, 6739005, 20217015]

約数ペア:

[(1, 20217015), (3, 6739005), (5, 4043403), (7, 2888145), (9, 2246335), (13, 1555155), (15, 1347801), (21, 962715), (35, 577629), (39, 518385), (45, 449267), (63, 320905), (65, 311031), (91, 222165), (105, 192543), (117, 172795), (195, 103677), (273, 74055), (315, 64181), (455, 44433), (585, 34559), (819, 24685), (1365, 14811), (4095, 4937)]