21054348

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:156

約数の個数: 144

約数和(自身を含む): 65345280

約数和(自身を除く): 44290932

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 29, 36, 42, 43, 58, 63, 67, 84, 86, 87, 116, 126, 129, 134, 172, 174, 201, 203, 252, 258, 261, 268, 301, 348, 387, 402, 406, 469, 516, 522, 602, 603, 609, 774, 804, 812, 903, 938, 1044, 1204, 1206, 1218, 1247, 1407, 1548, 1806, 1827, 1876, 1943, 2412, 2436, 2494, 2709, 2814, 2881, 3612, 3654, 3741, 3886, 4221, 4988, 5418, 5628, 5762, 5829, 7308, 7482, 7772, 8442, 8643, 8729, 10836, 11223, 11524, 11658, 13601, 14964, 16884, 17286, 17458, 17487, 20167, 22446, 23316, 25929, 26187, 27202, 34572, 34916, 34974, 40334, 40803, 44892, 51858, 52374, 54404, 60501, 69948, 78561, 80668, 81606, 83549, 103716, 104748, 121002, 122409, 157122, 163212, 167098, 181503, 242004, 244818, 250647, 314244, 334196, 363006, 489636, 501294, 584843, 726012, 751941, 1002588, 1169686, 1503882, 1754529, 2339372, 3007764, 3509058, 5263587, 7018116, 10527174, 21054348]

約数ペア:

[(1, 21054348), (2, 10527174), (3, 7018116), (4, 5263587), (6, 3509058), (7, 3007764), (9, 2339372), (12, 1754529), (14, 1503882), (18, 1169686), (21, 1002588), (28, 751941), (29, 726012), (36, 584843), (42, 501294), (43, 489636), (58, 363006), (63, 334196), (67, 314244), (84, 250647), (86, 244818), (87, 242004), (116, 181503), (126, 167098), (129, 163212), (134, 157122), (172, 122409), (174, 121002), (201, 104748), (203, 103716), (252, 83549), (258, 81606), (261, 80668), (268, 78561), (301, 69948), (348, 60501), (387, 54404), (402, 52374), (406, 51858), (469, 44892), (516, 40803), (522, 40334), (602, 34974), (603, 34916), (609, 34572), (774, 27202), (804, 26187), (812, 25929), (903, 23316), (938, 22446), (1044, 20167), (1204, 17487), (1206, 17458), (1218, 17286), (1247, 16884), (1407, 14964), (1548, 13601), (1806, 11658), (1827, 11524), (1876, 11223), (1943, 10836), (2412, 8729), (2436, 8643), (2494, 8442), (2709, 7772), (2814, 7482), (2881, 7308), (3612, 5829), (3654, 5762), (3741, 5628), (3886, 5418), (4221, 4988)]