21458880

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{7451}}^1$

素因数の和:7474

約数の個数: 84

約数和(自身を含む): 73819512

約数和(自身を除く): 52360632

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 144, 160, 180, 192, 240, 288, 320, 360, 480, 576, 720, 960, 1440, 2880, 7451, 14902, 22353, 29804, 37255, 44706, 59608, 67059, 74510, 89412, 111765, 119216, 134118, 149020, 178824, 223530, 238432, 268236, 298040, 335295, 357648, 447060, 476864, 536472, 596080, 670590, 715296, 894120, 1072944, 1192160, 1341180, 1430592, 1788240, 2145888, 2384320, 2682360, 3576480, 4291776, 5364720, 7152960, 10729440, 21458880]

約数ペア:

[(1, 21458880), (2, 10729440), (3, 7152960), (4, 5364720), (5, 4291776), (6, 3576480), (8, 2682360), (9, 2384320), (10, 2145888), (12, 1788240), (15, 1430592), (16, 1341180), (18, 1192160), (20, 1072944), (24, 894120), (30, 715296), (32, 670590), (36, 596080), (40, 536472), (45, 476864), (48, 447060), (60, 357648), (64, 335295), (72, 298040), (80, 268236), (90, 238432), (96, 223530), (120, 178824), (144, 149020), (160, 134118), (180, 119216), (192, 111765), (240, 89412), (288, 74510), (320, 67059), (360, 59608), (480, 44706), (576, 37255), (720, 29804), (960, 22353), (1440, 14902), (2880, 7451)]