19873755

素因数分解:

$3^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1487}}^1$

素因数の和:1518

約数の個数: 48

約数和(自身を含む): 38997504

約数和(自身を除く): 19123749

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 81, 99, 135, 165, 243, 297, 405, 495, 891, 1215, 1485, 1487, 2673, 4455, 4461, 7435, 13365, 13383, 16357, 22305, 40149, 49071, 66915, 81785, 120447, 147213, 200745, 245355, 361341, 441639, 602235, 736065, 1324917, 1806705, 2208195, 3974751, 6624585, 19873755]

約数ペア:

[(1, 19873755), (3, 6624585), (5, 3974751), (9, 2208195), (11, 1806705), (15, 1324917), (27, 736065), (33, 602235), (45, 441639), (55, 361341), (81, 245355), (99, 200745), (135, 147213), (165, 120447), (243, 81785), (297, 66915), (405, 49071), (495, 40149), (891, 22305), (1215, 16357), (1485, 13383), (1487, 13365), (2673, 7435), (4455, 4461)]