20911248

素因数分解:

$2^4\times 3^2\times {\mathrm{19}}^1\times {\mathrm{7643}}^1$

素因数の和:7676

約数の個数: 60

約数和(自身を含む): 61610640

約数和(自身を除く): 40699392

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 36, 38, 48, 57, 72, 76, 114, 144, 152, 171, 228, 304, 342, 456, 684, 912, 1368, 2736, 7643, 15286, 22929, 30572, 45858, 61144, 68787, 91716, 122288, 137574, 145217, 183432, 275148, 290434, 366864, 435651, 550296, 580868, 871302, 1100592, 1161736, 1306953, 1742604, 2323472, 2613906, 3485208, 5227812, 6970416, 10455624, 20911248]

約数ペア:

[(1, 20911248), (2, 10455624), (3, 6970416), (4, 5227812), (6, 3485208), (8, 2613906), (9, 2323472), (12, 1742604), (16, 1306953), (18, 1161736), (19, 1100592), (24, 871302), (36, 580868), (38, 550296), (48, 435651), (57, 366864), (72, 290434), (76, 275148), (114, 183432), (144, 145217), (152, 137574), (171, 122288), (228, 91716), (304, 68787), (342, 61144), (456, 45858), (684, 30572), (912, 22929), (1368, 15286), (2736, 7643)]