20213447072

素因数分解:

$2^5\times 7^2\times {\mathrm{13}}^1\times {\mathrm{991633}}^1$

素因数の和:991670

約数の個数: 72

約数和(自身を含む): 49853407716

約数和(自身を除く): 29639960644

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 49, 52, 56, 91, 98, 104, 112, 182, 196, 208, 224, 364, 392, 416, 637, 728, 784, 1274, 1456, 1568, 2548, 2912, 5096, 10192, 20384, 991633, 1983266, 3966532, 6941431, 7933064, 12891229, 13882862, 15866128, 25782458, 27765724, 31732256, 48590017, 51564916, 55531448, 90238603, 97180034, 103129832, 111062896, 180477206, 194360068, 206259664, 222125792, 360954412, 388720136, 412519328, 631670221, 721908824, 777440272, 1263340442, 1443817648, 1554880544, 2526680884, 2887635296, 5053361768, 10106723536, 20213447072]

約数ペア:

[(1, 20213447072), (2, 10106723536), (4, 5053361768), (7, 2887635296), (8, 2526680884), (13, 1554880544), (14, 1443817648), (16, 1263340442), (26, 777440272), (28, 721908824), (32, 631670221), (49, 412519328), (52, 388720136), (56, 360954412), (91, 222125792), (98, 206259664), (104, 194360068), (112, 180477206), (182, 111062896), (196, 103129832), (208, 97180034), (224, 90238603), (364, 55531448), (392, 51564916), (416, 48590017), (637, 31732256), (728, 27765724), (784, 25782458), (1274, 15866128), (1456, 13882862), (1568, 12891229), (2548, 7933064), (2912, 6941431), (5096, 3966532), (10192, 1983266), (20384, 991633)]