19775613

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1487}}^1$

素因数の和:1545

約数の個数: 32

約数和(自身を含む): 31997952

約数和(自身を除く): 12222339

約数列:

[1, 3, 11, 13, 31, 33, 39, 93, 143, 341, 403, 429, 1023, 1209, 1487, 4433, 4461, 13299, 16357, 19331, 46097, 49071, 57993, 138291, 212641, 507067, 599261, 637923, 1521201, 1797783, 6591871, 19775613]

約数ペア:

[(1, 19775613), (3, 6591871), (11, 1797783), (13, 1521201), (31, 637923), (33, 599261), (39, 507067), (93, 212641), (143, 138291), (341, 57993), (403, 49071), (429, 46097), (1023, 19331), (1209, 16357), (1487, 13299), (4433, 4461)]