21349800

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{409}}^1$

素因数の和:460

約数の個数: 144

約数和(自身を含む): 74353500

約数和(自身を除く): 53003700

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 29, 30, 36, 40, 45, 50, 58, 60, 72, 75, 87, 90, 100, 116, 120, 145, 150, 174, 180, 200, 225, 232, 261, 290, 300, 348, 360, 409, 435, 450, 522, 580, 600, 696, 725, 818, 870, 900, 1044, 1160, 1227, 1305, 1450, 1636, 1740, 1800, 2045, 2088, 2175, 2454, 2610, 2900, 3272, 3480, 3681, 4090, 4350, 4908, 5220, 5800, 6135, 6525, 7362, 8180, 8700, 9816, 10225, 10440, 11861, 12270, 13050, 14724, 16360, 17400, 18405, 20450, 23722, 24540, 26100, 29448, 30675, 35583, 36810, 40900, 47444, 49080, 52200, 59305, 61350, 71166, 73620, 81800, 92025, 94888, 106749, 118610, 122700, 142332, 147240, 177915, 184050, 213498, 237220, 245400, 284664, 296525, 355830, 368100, 426996, 474440, 533745, 593050, 711660, 736200, 853992, 889575, 1067490, 1186100, 1423320, 1779150, 2134980, 2372200, 2668725, 3558300, 4269960, 5337450, 7116600, 10674900, 21349800]

約数ペア:

[(1, 21349800), (2, 10674900), (3, 7116600), (4, 5337450), (5, 4269960), (6, 3558300), (8, 2668725), (9, 2372200), (10, 2134980), (12, 1779150), (15, 1423320), (18, 1186100), (20, 1067490), (24, 889575), (25, 853992), (29, 736200), (30, 711660), (36, 593050), (40, 533745), (45, 474440), (50, 426996), (58, 368100), (60, 355830), (72, 296525), (75, 284664), (87, 245400), (90, 237220), (100, 213498), (116, 184050), (120, 177915), (145, 147240), (150, 142332), (174, 122700), (180, 118610), (200, 106749), (225, 94888), (232, 92025), (261, 81800), (290, 73620), (300, 71166), (348, 61350), (360, 59305), (409, 52200), (435, 49080), (450, 47444), (522, 40900), (580, 36810), (600, 35583), (696, 30675), (725, 29448), (818, 26100), (870, 24540), (900, 23722), (1044, 20450), (1160, 18405), (1227, 17400), (1305, 16360), (1450, 14724), (1636, 13050), (1740, 12270), (1800, 11861), (2045, 10440), (2088, 10225), (2175, 9816), (2454, 8700), (2610, 8180), (2900, 7362), (3272, 6525), (3480, 6135), (3681, 5800), (4090, 5220), (4350, 4908)]