18901773

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{1021}}^1$

素因数の和:1066

約数の個数: 36

約数和(自身を含む): 31806684

約数和(自身を除く): 12904911

約数列:

[1, 3, 9, 11, 17, 33, 51, 99, 121, 153, 187, 363, 561, 1021, 1089, 1683, 2057, 3063, 6171, 9189, 11231, 17357, 18513, 33693, 52071, 101079, 123541, 156213, 190927, 370623, 572781, 1111869, 1718343, 2100197, 6300591, 18901773]

約数ペア:

[(1, 18901773), (3, 6300591), (9, 2100197), (11, 1718343), (17, 1111869), (33, 572781), (51, 370623), (99, 190927), (121, 156213), (153, 123541), (187, 101079), (363, 52071), (561, 33693), (1021, 18513), (1089, 17357), (1683, 11231), (2057, 9189), (3063, 6171)]