21239484

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{8719}}^1$

素因数の和:8762

約数の個数: 48

約数和(自身を含む): 58598400

約数和(自身を除く): 37358916

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 29, 42, 58, 84, 87, 116, 174, 203, 348, 406, 609, 812, 1218, 2436, 8719, 17438, 26157, 34876, 52314, 61033, 104628, 122066, 183099, 244132, 252851, 366198, 505702, 732396, 758553, 1011404, 1517106, 1769957, 3034212, 3539914, 5309871, 7079828, 10619742, 21239484]

約数ペア:

[(1, 21239484), (2, 10619742), (3, 7079828), (4, 5309871), (6, 3539914), (7, 3034212), (12, 1769957), (14, 1517106), (21, 1011404), (28, 758553), (29, 732396), (42, 505702), (58, 366198), (84, 252851), (87, 244132), (116, 183099), (174, 122066), (203, 104628), (348, 61033), (406, 52314), (609, 34876), (812, 26157), (1218, 17438), (2436, 8719)]