18978264

素因数分解:

$2^3\times 3^2\times {\mathrm{19}}^1\times {\mathrm{13873}}^1$

素因数の和:13904

約数の個数: 48

約数和(自身を含む): 54108600

約数和(自身を除く): 35130336

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, 13873, 27746, 41619, 55492, 83238, 110984, 124857, 166476, 249714, 263587, 332952, 499428, 527174, 790761, 998856, 1054348, 1581522, 2108696, 2372283, 3163044, 4744566, 6326088, 9489132, 18978264]

約数ペア:

[(1, 18978264), (2, 9489132), (3, 6326088), (4, 4744566), (6, 3163044), (8, 2372283), (9, 2108696), (12, 1581522), (18, 1054348), (19, 998856), (24, 790761), (36, 527174), (38, 499428), (57, 332952), (72, 263587), (76, 249714), (114, 166476), (152, 124857), (171, 110984), (228, 83238), (342, 55492), (456, 41619), (684, 27746), (1368, 13873)]