18326979

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{307}}^1$

素因数の和:397

約数の個数: 40

約数和(自身を含む): 30410688

約数和(自身を除く): 12083709

約数列:

[1, 3, 9, 11, 27, 33, 67, 81, 99, 201, 297, 307, 603, 737, 891, 921, 1809, 2211, 2763, 3377, 5427, 6633, 8289, 10131, 19899, 20569, 24867, 30393, 59697, 61707, 91179, 185121, 226259, 273537, 555363, 678777, 1666089, 2036331, 6108993, 18326979]

約数ペア:

[(1, 18326979), (3, 6108993), (9, 2036331), (11, 1666089), (27, 678777), (33, 555363), (67, 273537), (81, 226259), (99, 185121), (201, 91179), (297, 61707), (307, 59697), (603, 30393), (737, 24867), (891, 20569), (921, 19899), (1809, 10131), (2211, 8289), (2763, 6633), (3377, 5427)]