20803701

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1$

素因数の和:225

約数の個数: 32

約数和(自身を含む): 30159360

約数和(自身を除く): 9355659

約数列:

[1, 3, 29, 43, 67, 83, 87, 129, 201, 249, 1247, 1943, 2407, 2881, 3569, 3741, 5561, 5829, 7221, 8643, 10707, 16683, 83549, 103501, 161269, 239123, 250647, 310503, 483807, 717369, 6934567, 20803701]

約数ペア:

[(1, 20803701), (3, 6934567), (29, 717369), (43, 483807), (67, 310503), (83, 250647), (87, 239123), (129, 161269), (201, 103501), (249, 83549), (1247, 16683), (1943, 10707), (2407, 8643), (2881, 7221), (3569, 5829), (3741, 5561)]