21913000

素因数分解:

$2^3\times 5^3\times {\mathrm{17}}^1\times {\mathrm{1289}}^1$

素因数の和:1327

約数の個数: 64

約数和(自身を含む): 54334800

約数和(自身を除く): 32421800

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, 1289, 1700, 2125, 2578, 3400, 4250, 5156, 6445, 8500, 10312, 12890, 17000, 21913, 25780, 32225, 43826, 51560, 64450, 87652, 109565, 128900, 161125, 175304, 219130, 257800, 322250, 438260, 547825, 644500, 876520, 1095650, 1289000, 2191300, 2739125, 4382600, 5478250, 10956500, 21913000]

約数ペア:

[(1, 21913000), (2, 10956500), (4, 5478250), (5, 4382600), (8, 2739125), (10, 2191300), (17, 1289000), (20, 1095650), (25, 876520), (34, 644500), (40, 547825), (50, 438260), (68, 322250), (85, 257800), (100, 219130), (125, 175304), (136, 161125), (170, 128900), (200, 109565), (250, 87652), (340, 64450), (425, 51560), (500, 43826), (680, 32225), (850, 25780), (1000, 21913), (1289, 17000), (1700, 12890), (2125, 10312), (2578, 8500), (3400, 6445), (4250, 5156)]