21893340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{52127}}^1$

素因数の和:52146

約数の個数: 48

約数和(自身を含む): 70060032

約数和(自身を除く): 48166692

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 52127, 104254, 156381, 208508, 260635, 312762, 364889, 521270, 625524, 729778, 781905, 1042540, 1094667, 1459556, 1563810, 1824445, 2189334, 3127620, 3648890, 4378668, 5473335, 7297780, 10946670, 21893340]

約数ペア:

[(1, 21893340), (2, 10946670), (3, 7297780), (4, 5473335), (5, 4378668), (6, 3648890), (7, 3127620), (10, 2189334), (12, 1824445), (14, 1563810), (15, 1459556), (20, 1094667), (21, 1042540), (28, 781905), (30, 729778), (35, 625524), (42, 521270), (60, 364889), (70, 312762), (84, 260635), (105, 208508), (140, 156381), (210, 104254), (420, 52127)]