21314205

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{463}}^1$

素因数の和:519

約数の個数: 64

約数和(自身を含む): 42762240

約数和(自身を除く): 21448035

約数列:

[1, 3, 5, 9, 11, 15, 27, 31, 33, 45, 55, 93, 99, 135, 155, 165, 279, 297, 341, 463, 465, 495, 837, 1023, 1389, 1395, 1485, 1705, 2315, 3069, 4167, 4185, 5093, 5115, 6945, 9207, 12501, 14353, 15279, 15345, 20835, 25465, 43059, 45837, 46035, 62505, 71765, 76395, 129177, 137511, 157883, 215295, 229185, 387531, 473649, 645885, 687555, 789415, 1420947, 1937655, 2368245, 4262841, 7104735, 21314205]

約数ペア:

[(1, 21314205), (3, 7104735), (5, 4262841), (9, 2368245), (11, 1937655), (15, 1420947), (27, 789415), (31, 687555), (33, 645885), (45, 473649), (55, 387531), (93, 229185), (99, 215295), (135, 157883), (155, 137511), (165, 129177), (279, 76395), (297, 71765), (341, 62505), (463, 46035), (465, 45837), (495, 43059), (837, 25465), (1023, 20835), (1389, 15345), (1395, 15279), (1485, 14353), (1705, 12501), (2315, 9207), (3069, 6945), (4167, 5115), (4185, 5093)]