21078600

素因数分解:

$2^3\times 3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^2$

素因数の和:124

約数の個数: 144

約数和(自身を含む): 70419600

約数和(自身を除く): 49341000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 25, 30, 38, 40, 43, 50, 57, 60, 75, 76, 86, 95, 100, 114, 120, 129, 150, 152, 172, 190, 200, 215, 228, 258, 285, 300, 344, 380, 430, 456, 475, 516, 570, 600, 645, 760, 817, 860, 950, 1032, 1075, 1140, 1290, 1425, 1634, 1720, 1849, 1900, 2150, 2280, 2451, 2580, 2850, 3225, 3268, 3698, 3800, 4085, 4300, 4902, 5160, 5547, 5700, 6450, 6536, 7396, 8170, 8600, 9245, 9804, 11094, 11400, 12255, 12900, 14792, 16340, 18490, 19608, 20425, 22188, 24510, 25800, 27735, 32680, 35131, 36980, 40850, 44376, 46225, 49020, 55470, 61275, 70262, 73960, 81700, 92450, 98040, 105393, 110940, 122550, 138675, 140524, 163400, 175655, 184900, 210786, 221880, 245100, 277350, 281048, 351310, 369800, 421572, 490200, 526965, 554700, 702620, 843144, 878275, 1053930, 1109400, 1405240, 1756550, 2107860, 2634825, 3513100, 4215720, 5269650, 7026200, 10539300, 21078600]

約数ペア:

[(1, 21078600), (2, 10539300), (3, 7026200), (4, 5269650), (5, 4215720), (6, 3513100), (8, 2634825), (10, 2107860), (12, 1756550), (15, 1405240), (19, 1109400), (20, 1053930), (24, 878275), (25, 843144), (30, 702620), (38, 554700), (40, 526965), (43, 490200), (50, 421572), (57, 369800), (60, 351310), (75, 281048), (76, 277350), (86, 245100), (95, 221880), (100, 210786), (114, 184900), (120, 175655), (129, 163400), (150, 140524), (152, 138675), (172, 122550), (190, 110940), (200, 105393), (215, 98040), (228, 92450), (258, 81700), (285, 73960), (300, 70262), (344, 61275), (380, 55470), (430, 49020), (456, 46225), (475, 44376), (516, 40850), (570, 36980), (600, 35131), (645, 32680), (760, 27735), (817, 25800), (860, 24510), (950, 22188), (1032, 20425), (1075, 19608), (1140, 18490), (1290, 16340), (1425, 14792), (1634, 12900), (1720, 12255), (1849, 11400), (1900, 11094), (2150, 9804), (2280, 9245), (2451, 8600), (2580, 8170), (2850, 7396), (3225, 6536), (3268, 6450), (3698, 5700), (3800, 5547), (4085, 5160), (4300, 4902)]