21113340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{7487}}^1$

素因数の和:7546

約数の個数: 48

約数和(自身を含む): 60383232

約数和(自身を除く): 39269892

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 47, 60, 94, 141, 188, 235, 282, 470, 564, 705, 940, 1410, 2820, 7487, 14974, 22461, 29948, 37435, 44922, 74870, 89844, 112305, 149740, 224610, 351889, 449220, 703778, 1055667, 1407556, 1759445, 2111334, 3518890, 4222668, 5278335, 7037780, 10556670, 21113340]

約数ペア:

[(1, 21113340), (2, 10556670), (3, 7037780), (4, 5278335), (5, 4222668), (6, 3518890), (10, 2111334), (12, 1759445), (15, 1407556), (20, 1055667), (30, 703778), (47, 449220), (60, 351889), (94, 224610), (141, 149740), (188, 112305), (235, 89844), (282, 74870), (470, 44922), (564, 37435), (705, 29948), (940, 22461), (1410, 14974), (2820, 7487)]