21108900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{4139}}^1$

素因数の和:4173

約数の個数: 72

約数和(自身を含む): 64683360

約数和(自身を除く): 43574460

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, 4139, 5100, 8278, 12417, 16556, 20695, 24834, 41390, 49668, 62085, 70363, 82780, 103475, 124170, 140726, 206950, 211089, 248340, 281452, 310425, 351815, 413900, 422178, 620850, 703630, 844356, 1055445, 1241700, 1407260, 1759075, 2110890, 3518150, 4221780, 5277225, 7036300, 10554450, 21108900]

約数ペア:

[(1, 21108900), (2, 10554450), (3, 7036300), (4, 5277225), (5, 4221780), (6, 3518150), (10, 2110890), (12, 1759075), (15, 1407260), (17, 1241700), (20, 1055445), (25, 844356), (30, 703630), (34, 620850), (50, 422178), (51, 413900), (60, 351815), (68, 310425), (75, 281452), (85, 248340), (100, 211089), (102, 206950), (150, 140726), (170, 124170), (204, 103475), (255, 82780), (300, 70363), (340, 62085), (425, 49668), (510, 41390), (850, 24834), (1020, 20695), (1275, 16556), (1700, 12417), (2550, 8278), (4139, 5100)]