21284712

素因数分解:

$2^3\times 3^2\times {\mathrm{19}}^1\times {\mathrm{15559}}^1$

素因数の和:15590

約数の個数: 48

約数和(自身を含む): 60684000

約数和(自身を除く): 39399288

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, 15559, 31118, 46677, 62236, 93354, 124472, 140031, 186708, 280062, 295621, 373416, 560124, 591242, 886863, 1120248, 1182484, 1773726, 2364968, 2660589, 3547452, 5321178, 7094904, 10642356, 21284712]

約数ペア:

[(1, 21284712), (2, 10642356), (3, 7094904), (4, 5321178), (6, 3547452), (8, 2660589), (9, 2364968), (12, 1773726), (18, 1182484), (19, 1120248), (24, 886863), (36, 591242), (38, 560124), (57, 373416), (72, 295621), (76, 280062), (114, 186708), (152, 140031), (171, 124472), (228, 93354), (342, 62236), (456, 46677), (684, 31118), (1368, 15559)]