21456168

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{223}}^1$

素因数の和:462

約数の個数: 64

約数和(自身を含む): 56985600

約数和(自身を除く): 35529432

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 152, 211, 223, 228, 422, 446, 456, 633, 669, 844, 892, 1266, 1338, 1688, 1784, 2532, 2676, 4009, 4237, 5064, 5352, 8018, 8474, 12027, 12711, 16036, 16948, 24054, 25422, 32072, 33896, 47053, 48108, 50844, 94106, 96216, 101688, 141159, 188212, 282318, 376424, 564636, 894007, 1129272, 1788014, 2682021, 3576028, 5364042, 7152056, 10728084, 21456168]

約数ペア:

[(1, 21456168), (2, 10728084), (3, 7152056), (4, 5364042), (6, 3576028), (8, 2682021), (12, 1788014), (19, 1129272), (24, 894007), (38, 564636), (57, 376424), (76, 282318), (114, 188212), (152, 141159), (211, 101688), (223, 96216), (228, 94106), (422, 50844), (446, 48108), (456, 47053), (633, 33896), (669, 32072), (844, 25422), (892, 24054), (1266, 16948), (1338, 16036), (1688, 12711), (1784, 12027), (2532, 8474), (2676, 8018), (4009, 5352), (4237, 5064)]