19912728

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^2\times {\mathrm{6857}}^1$

素因数の和:6888

約数の個数: 48

約数和(自身を含む): 54726840

約数和(自身を除く): 34814112

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 88, 121, 132, 242, 264, 363, 484, 726, 968, 1452, 2904, 6857, 13714, 20571, 27428, 41142, 54856, 75427, 82284, 150854, 164568, 226281, 301708, 452562, 603416, 829697, 905124, 1659394, 1810248, 2489091, 3318788, 4978182, 6637576, 9956364, 19912728]

約数ペア:

[(1, 19912728), (2, 9956364), (3, 6637576), (4, 4978182), (6, 3318788), (8, 2489091), (11, 1810248), (12, 1659394), (22, 905124), (24, 829697), (33, 603416), (44, 452562), (66, 301708), (88, 226281), (121, 164568), (132, 150854), (242, 82284), (264, 75427), (363, 54856), (484, 41142), (726, 27428), (968, 20571), (1452, 13714), (2904, 6857)]