20953352

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{419}}^1$

素因数の和:498

約数の個数: 64

約数和(自身を含む): 48384000

約数和(自身を除く): 27430648

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 47, 56, 76, 94, 133, 152, 188, 266, 329, 376, 419, 532, 658, 838, 893, 1064, 1316, 1676, 1786, 2632, 2933, 3352, 3572, 5866, 6251, 7144, 7961, 11732, 12502, 15922, 19693, 23464, 25004, 31844, 39386, 50008, 55727, 63688, 78772, 111454, 137851, 157544, 222908, 275702, 374167, 445816, 551404, 748334, 1102808, 1496668, 2619169, 2993336, 5238338, 10476676, 20953352]

約数ペア:

[(1, 20953352), (2, 10476676), (4, 5238338), (7, 2993336), (8, 2619169), (14, 1496668), (19, 1102808), (28, 748334), (38, 551404), (47, 445816), (56, 374167), (76, 275702), (94, 222908), (133, 157544), (152, 137851), (188, 111454), (266, 78772), (329, 63688), (376, 55727), (419, 50008), (532, 39386), (658, 31844), (838, 25004), (893, 23464), (1064, 19693), (1316, 15922), (1676, 12502), (1786, 11732), (2632, 7961), (2933, 7144), (3352, 6251), (3572, 5866)]