28053927

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{211}}^1$

素因数の和:324

約数の個数: 48

約数和(自身を含む): 47623680

約数和(自身を除く): 19569753

約数列:

[1, 3, 9, 11, 17, 33, 51, 79, 99, 153, 187, 211, 237, 561, 633, 711, 869, 1343, 1683, 1899, 2321, 2607, 3587, 4029, 6963, 7821, 10761, 12087, 14773, 16669, 20889, 32283, 39457, 44319, 50007, 118371, 132957, 150021, 183359, 283373, 355113, 550077, 850119, 1650231, 2550357, 3117103, 9351309, 28053927]

約数ペア:

[(1, 28053927), (3, 9351309), (9, 3117103), (11, 2550357), (17, 1650231), (33, 850119), (51, 550077), (79, 355113), (99, 283373), (153, 183359), (187, 150021), (211, 132957), (237, 118371), (561, 50007), (633, 44319), (711, 39457), (869, 32283), (1343, 20889), (1683, 16669), (1899, 14773), (2321, 12087), (2607, 10761), (3587, 7821), (4029, 6963)]