21399624

素因数分解:

$2^3\times 3^2\times {\mathrm{19}}^1\times {\mathrm{15643}}^1$

素因数の和:15674

約数の個数: 48

約数和(自身を含む): 61011600

約数和(自身を除く): 39611976

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 36, 38, 57, 72, 76, 114, 152, 171, 228, 342, 456, 684, 1368, 15643, 31286, 46929, 62572, 93858, 125144, 140787, 187716, 281574, 297217, 375432, 563148, 594434, 891651, 1126296, 1188868, 1783302, 2377736, 2674953, 3566604, 5349906, 7133208, 10699812, 21399624]

約数ペア:

[(1, 21399624), (2, 10699812), (3, 7133208), (4, 5349906), (6, 3566604), (8, 2674953), (9, 2377736), (12, 1783302), (18, 1188868), (19, 1126296), (24, 891651), (36, 594434), (38, 563148), (57, 375432), (72, 297217), (76, 281574), (114, 187716), (152, 140787), (171, 125144), (228, 93858), (342, 62572), (456, 46929), (684, 31286), (1368, 15643)]