211212904

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1\times {\mathrm{367}}^1$

素因数の和:662

約数の個数: 64

約数和(自身を含む): 466329600

約数和(自身を除く): 255116696

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 172, 239, 301, 344, 367, 478, 602, 734, 956, 1204, 1468, 1673, 1912, 2408, 2569, 2936, 3346, 5138, 6692, 10276, 10277, 13384, 15781, 20552, 20554, 31562, 41108, 63124, 71939, 82216, 87713, 110467, 126248, 143878, 175426, 220934, 287756, 350852, 441868, 575512, 613991, 701704, 883736, 1227982, 2455964, 3771659, 4911928, 7543318, 15086636, 26401613, 30173272, 52803226, 105606452, 211212904]

約数ペア:

[(1, 211212904), (2, 105606452), (4, 52803226), (7, 30173272), (8, 26401613), (14, 15086636), (28, 7543318), (43, 4911928), (56, 3771659), (86, 2455964), (172, 1227982), (239, 883736), (301, 701704), (344, 613991), (367, 575512), (478, 441868), (602, 350852), (734, 287756), (956, 220934), (1204, 175426), (1468, 143878), (1673, 126248), (1912, 110467), (2408, 87713), (2569, 82216), (2936, 71939), (3346, 63124), (5138, 41108), (6692, 31562), (10276, 20554), (10277, 20552), (13384, 15781)]