19890648

素因数分解:

$2^3\times 3^2\times {\mathrm{227}}^1\times {\mathrm{1217}}^1$

素因数の和:1456

約数の個数: 48

約数和(自身を含む): 54152280

約数和(自身を除く): 34261632

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 227, 454, 681, 908, 1217, 1362, 1816, 2043, 2434, 2724, 3651, 4086, 4868, 5448, 7302, 8172, 9736, 10953, 14604, 16344, 21906, 29208, 43812, 87624, 276259, 552518, 828777, 1105036, 1657554, 2210072, 2486331, 3315108, 4972662, 6630216, 9945324, 19890648]

約数ペア:

[(1, 19890648), (2, 9945324), (3, 6630216), (4, 4972662), (6, 3315108), (8, 2486331), (9, 2210072), (12, 1657554), (18, 1105036), (24, 828777), (36, 552518), (72, 276259), (227, 87624), (454, 43812), (681, 29208), (908, 21906), (1217, 16344), (1362, 14604), (1816, 10953), (2043, 9736), (2434, 8172), (2724, 7302), (3651, 5448), (4086, 4868)]