219905091

素因数分解:

$3^3\times 7^2\times {\mathrm{359}}^1\times {\mathrm{463}}^1$

素因数の和:845

約数の個数: 48

約数和(自身を含む): 380851200

約数和(自身を除く): 160946109

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 359, 441, 463, 1077, 1323, 1389, 2513, 3231, 3241, 4167, 7539, 9693, 9723, 12501, 17591, 22617, 22687, 29169, 52773, 67851, 68061, 87507, 158319, 166217, 204183, 474957, 498651, 612549, 1163519, 1495953, 3490557, 4487859, 8144633, 10471671, 24433899, 31415013, 73301697, 219905091]

約数ペア:

[(1, 219905091), (3, 73301697), (7, 31415013), (9, 24433899), (21, 10471671), (27, 8144633), (49, 4487859), (63, 3490557), (147, 1495953), (189, 1163519), (359, 612549), (441, 498651), (463, 474957), (1077, 204183), (1323, 166217), (1389, 158319), (2513, 87507), (3231, 68061), (3241, 67851), (4167, 52773), (7539, 29169), (9693, 22687), (9723, 22617), (12501, 17591)]