18280912

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{491}}^1$

素因数の和:691

約数の個数: 40

約数和(自身を含む): 38435040

約数和(自身を除く): 20154128

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 179, 208, 358, 491, 716, 982, 1432, 1964, 2327, 2864, 3928, 4654, 6383, 7856, 9308, 12766, 18616, 25532, 37232, 51064, 87889, 102128, 175778, 351556, 703112, 1142557, 1406224, 2285114, 4570228, 9140456, 18280912]

約数ペア:

[(1, 18280912), (2, 9140456), (4, 4570228), (8, 2285114), (13, 1406224), (16, 1142557), (26, 703112), (52, 351556), (104, 175778), (179, 102128), (208, 87889), (358, 51064), (491, 37232), (716, 25532), (982, 18616), (1432, 12766), (1964, 9308), (2327, 7856), (2864, 6383), (3928, 4654)]