21812490

素因数分解:

$2^1\times 3^4\times 5^1\times 7^1\times {\mathrm{3847}}^1$

素因数の和:3873

約数の個数: 80

約数和(自身を含む): 67047552

約数和(自身を除く): 45235062

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 81, 90, 105, 126, 135, 162, 189, 210, 270, 315, 378, 405, 567, 630, 810, 945, 1134, 1890, 2835, 3847, 5670, 7694, 11541, 19235, 23082, 26929, 34623, 38470, 53858, 57705, 69246, 80787, 103869, 115410, 134645, 161574, 173115, 207738, 242361, 269290, 311607, 346230, 403935, 484722, 519345, 623214, 727083, 807870, 1038690, 1211805, 1454166, 1558035, 2181249, 2423610, 3116070, 3635415, 4362498, 7270830, 10906245, 21812490]

約数ペア:

[(1, 21812490), (2, 10906245), (3, 7270830), (5, 4362498), (6, 3635415), (7, 3116070), (9, 2423610), (10, 2181249), (14, 1558035), (15, 1454166), (18, 1211805), (21, 1038690), (27, 807870), (30, 727083), (35, 623214), (42, 519345), (45, 484722), (54, 403935), (63, 346230), (70, 311607), (81, 269290), (90, 242361), (105, 207738), (126, 173115), (135, 161574), (162, 134645), (189, 115410), (210, 103869), (270, 80787), (315, 69246), (378, 57705), (405, 53858), (567, 38470), (630, 34623), (810, 26929), (945, 23082), (1134, 19235), (1890, 11541), (2835, 7694), (3847, 5670)]