636721407

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{2521}}^1$

素因数の和:2764

約数の個数: 48

約数和(自身を含む): 1112101120

約数和(自身を除く): 475379713

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 211, 399, 633, 1197, 1477, 1899, 2521, 4009, 4431, 7563, 12027, 13293, 17647, 22689, 28063, 36081, 47899, 52941, 84189, 143697, 158823, 252567, 335293, 431091, 531931, 1005879, 1595793, 3017637, 3723517, 4787379, 10106689, 11170551, 30320067, 33511653, 70746823, 90960201, 212240469, 636721407]

約数ペア:

[(1, 636721407), (3, 212240469), (7, 90960201), (9, 70746823), (19, 33511653), (21, 30320067), (57, 11170551), (63, 10106689), (133, 4787379), (171, 3723517), (211, 3017637), (399, 1595793), (633, 1005879), (1197, 531931), (1477, 431091), (1899, 335293), (2521, 252567), (4009, 158823), (4431, 143697), (7563, 84189), (12027, 52941), (13293, 47899), (17647, 36081), (22689, 28063)]