21065013720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1360789}}^1$

素因数の和:1360849

約数の個数: 96

約数和(自身を含む): 70053469200

約数和(自身を除く): 48988455480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 43, 45, 60, 72, 86, 90, 120, 129, 172, 180, 215, 258, 344, 360, 387, 430, 516, 645, 774, 860, 1032, 1290, 1548, 1720, 1935, 2580, 3096, 3870, 5160, 7740, 15480, 1360789, 2721578, 4082367, 5443156, 6803945, 8164734, 10886312, 12247101, 13607890, 16329468, 20411835, 24494202, 27215780, 32658936, 40823670, 48988404, 54431560, 58513927, 61235505, 81647340, 97976808, 117027854, 122471010, 163294680, 175541781, 234055708, 244942020, 292569635, 351083562, 468111416, 489884040, 526625343, 585139270, 702167124, 877708905, 1053250686, 1170278540, 1404334248, 1755417810, 2106501372, 2340557080, 2633126715, 3510835620, 4213002744, 5266253430, 7021671240, 10532506860, 21065013720]

約数ペア:

[(1, 21065013720), (2, 10532506860), (3, 7021671240), (4, 5266253430), (5, 4213002744), (6, 3510835620), (8, 2633126715), (9, 2340557080), (10, 2106501372), (12, 1755417810), (15, 1404334248), (18, 1170278540), (20, 1053250686), (24, 877708905), (30, 702167124), (36, 585139270), (40, 526625343), (43, 489884040), (45, 468111416), (60, 351083562), (72, 292569635), (86, 244942020), (90, 234055708), (120, 175541781), (129, 163294680), (172, 122471010), (180, 117027854), (215, 97976808), (258, 81647340), (344, 61235505), (360, 58513927), (387, 54431560), (430, 48988404), (516, 40823670), (645, 32658936), (774, 27215780), (860, 24494202), (1032, 20411835), (1290, 16329468), (1548, 13607890), (1720, 12247101), (1935, 10886312), (2580, 8164734), (3096, 6803945), (3870, 5443156), (5160, 4082367), (7740, 2721578), (15480, 1360789)]