18380912

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{577}}^1$

素因数の和:777

約数の個数: 40

約数和(自身を含む): 39132912

約数和(自身を除く): 20752000

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 181, 362, 577, 724, 1154, 1448, 1991, 2308, 2896, 3982, 4616, 6347, 7964, 9232, 12694, 15928, 25388, 31856, 50776, 101552, 104437, 208874, 417748, 835496, 1148807, 1670992, 2297614, 4595228, 9190456, 18380912]

約数ペア:

[(1, 18380912), (2, 9190456), (4, 4595228), (8, 2297614), (11, 1670992), (16, 1148807), (22, 835496), (44, 417748), (88, 208874), (176, 104437), (181, 101552), (362, 50776), (577, 31856), (724, 25388), (1154, 15928), (1448, 12694), (1991, 9232), (2308, 7964), (2896, 6347), (3982, 4616)]