19286488

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3499}}^1$

素因数の和:3571

約数の個数: 32

約数和(自身を含む): 39690000

約数和(自身を除く): 20403512

約数列:

[1, 2, 4, 8, 13, 26, 52, 53, 104, 106, 212, 424, 689, 1378, 2756, 3499, 5512, 6998, 13996, 27992, 45487, 90974, 181948, 185447, 363896, 370894, 741788, 1483576, 2410811, 4821622, 9643244, 19286488]

約数ペア:

[(1, 19286488), (2, 9643244), (4, 4821622), (8, 2410811), (13, 1483576), (26, 741788), (52, 370894), (53, 363896), (104, 185447), (106, 181948), (212, 90974), (424, 45487), (689, 27992), (1378, 13996), (2756, 6998), (3499, 5512)]