21506700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{4217}}^1$

素因数の和:4251

約数の個数: 72

約数和(自身を含む): 65902032

約数和(自身を除く): 44395332

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 25, 30, 34, 50, 51, 60, 68, 75, 85, 100, 102, 150, 170, 204, 255, 300, 340, 425, 510, 850, 1020, 1275, 1700, 2550, 4217, 5100, 8434, 12651, 16868, 21085, 25302, 42170, 50604, 63255, 71689, 84340, 105425, 126510, 143378, 210850, 215067, 253020, 286756, 316275, 358445, 421700, 430134, 632550, 716890, 860268, 1075335, 1265100, 1433780, 1792225, 2150670, 3584450, 4301340, 5376675, 7168900, 10753350, 21506700]

約数ペア:

[(1, 21506700), (2, 10753350), (3, 7168900), (4, 5376675), (5, 4301340), (6, 3584450), (10, 2150670), (12, 1792225), (15, 1433780), (17, 1265100), (20, 1075335), (25, 860268), (30, 716890), (34, 632550), (50, 430134), (51, 421700), (60, 358445), (68, 316275), (75, 286756), (85, 253020), (100, 215067), (102, 210850), (150, 143378), (170, 126510), (204, 105425), (255, 84340), (300, 71689), (340, 63255), (425, 50604), (510, 42170), (850, 25302), (1020, 21085), (1275, 16868), (1700, 12651), (2550, 8434), (4217, 5100)]