13420395

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{331}}^1$

素因数の和:412

約数の個数: 48

約数和(自身を含む): 25170912

約数和(自身を除く): 11750517

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 53, 85, 153, 159, 255, 265, 331, 477, 765, 795, 901, 993, 1655, 2385, 2703, 2979, 4505, 4965, 5627, 8109, 13515, 14895, 16881, 17543, 28135, 40545, 50643, 52629, 84405, 87715, 157887, 253215, 263145, 298231, 789435, 894693, 1491155, 2684079, 4473465, 13420395]

約数ペア:

[(1, 13420395), (3, 4473465), (5, 2684079), (9, 1491155), (15, 894693), (17, 789435), (45, 298231), (51, 263145), (53, 253215), (85, 157887), (153, 87715), (159, 84405), (255, 52629), (265, 50643), (331, 40545), (477, 28135), (765, 17543), (795, 16881), (901, 14895), (993, 13515), (1655, 8109), (2385, 5627), (2703, 4965), (2979, 4505)]