21709000

素因数分解:

$2^3\times 5^3\times {\mathrm{17}}^1\times {\mathrm{1277}}^1$

素因数の和:1315

約数の個数: 64

約数和(自身を含む): 53829360

約数和(自身を除く): 32120360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 68, 85, 100, 125, 136, 170, 200, 250, 340, 425, 500, 680, 850, 1000, 1277, 1700, 2125, 2554, 3400, 4250, 5108, 6385, 8500, 10216, 12770, 17000, 21709, 25540, 31925, 43418, 51080, 63850, 86836, 108545, 127700, 159625, 173672, 217090, 255400, 319250, 434180, 542725, 638500, 868360, 1085450, 1277000, 2170900, 2713625, 4341800, 5427250, 10854500, 21709000]

約数ペア:

[(1, 21709000), (2, 10854500), (4, 5427250), (5, 4341800), (8, 2713625), (10, 2170900), (17, 1277000), (20, 1085450), (25, 868360), (34, 638500), (40, 542725), (50, 434180), (68, 319250), (85, 255400), (100, 217090), (125, 173672), (136, 159625), (170, 127700), (200, 108545), (250, 86836), (340, 63850), (425, 51080), (500, 43418), (680, 31925), (850, 25540), (1000, 21709), (1277, 17000), (1700, 12770), (2125, 10216), (2554, 8500), (3400, 6385), (4250, 5108)]