21580524

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{2953}}^1$

素因数の和:2999

約数の個数: 72

約数和(自身を含む): 64515360

約数和(自身を除く): 42934836

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 29, 36, 42, 58, 63, 84, 87, 116, 126, 174, 203, 252, 261, 348, 406, 522, 609, 812, 1044, 1218, 1827, 2436, 2953, 3654, 5906, 7308, 8859, 11812, 17718, 20671, 26577, 35436, 41342, 53154, 62013, 82684, 85637, 106308, 124026, 171274, 186039, 248052, 256911, 342548, 372078, 513822, 599459, 744156, 770733, 1027644, 1198918, 1541466, 1798377, 2397836, 3082932, 3596754, 5395131, 7193508, 10790262, 21580524]

約数ペア:

[(1, 21580524), (2, 10790262), (3, 7193508), (4, 5395131), (6, 3596754), (7, 3082932), (9, 2397836), (12, 1798377), (14, 1541466), (18, 1198918), (21, 1027644), (28, 770733), (29, 744156), (36, 599459), (42, 513822), (58, 372078), (63, 342548), (84, 256911), (87, 248052), (116, 186039), (126, 171274), (174, 124026), (203, 106308), (252, 85637), (261, 82684), (348, 62013), (406, 53154), (522, 41342), (609, 35436), (812, 26577), (1044, 20671), (1218, 17718), (1827, 11812), (2436, 8859), (2953, 7308), (3654, 5906)]