18992181

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{683}}^1$

素因数の和:753

約数の個数: 32

約数和(自身を含む): 29417472

約数和(自身を除く): 10425291

約数列:

[1, 3, 13, 23, 31, 39, 69, 93, 299, 403, 683, 713, 897, 1209, 2049, 2139, 8879, 9269, 15709, 21173, 26637, 27807, 47127, 63519, 204217, 275249, 486979, 612651, 825747, 1460937, 6330727, 18992181]

約数ペア:

[(1, 18992181), (3, 6330727), (13, 1460937), (23, 825747), (31, 612651), (39, 486979), (69, 275249), (93, 204217), (299, 63519), (403, 47127), (683, 27807), (713, 26637), (897, 21173), (1209, 15709), (2049, 9269), (2139, 8879)]