18796113

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 32446336

約数和(自身を除く): 13650223

約数列:

[1, 3, 7, 9, 21, 61, 63, 67, 73, 183, 201, 219, 427, 469, 511, 549, 603, 657, 1281, 1407, 1533, 3843, 4087, 4221, 4453, 4599, 4891, 12261, 13359, 14673, 28609, 31171, 34237, 36783, 40077, 44019, 85827, 93513, 102711, 257481, 280539, 298351, 308133, 895053, 2088457, 2685159, 6265371, 18796113]

約数ペア:

[(1, 18796113), (3, 6265371), (7, 2685159), (9, 2088457), (21, 895053), (61, 308133), (63, 298351), (67, 280539), (73, 257481), (183, 102711), (201, 93513), (219, 85827), (427, 44019), (469, 40077), (511, 36783), (549, 34237), (603, 31171), (657, 28609), (1281, 14673), (1407, 13359), (1533, 12261), (3843, 4891), (4087, 4599), (4221, 4453)]