20618864

素因数分解:

$2^4\times 7^1\times {\mathrm{227}}^1\times {\mathrm{811}}^1$

素因数の和:1053

約数の個数: 40

約数和(自身を含む): 45913728

約数和(自身を除く): 25294864

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 227, 454, 811, 908, 1589, 1622, 1816, 3178, 3244, 3632, 5677, 6356, 6488, 11354, 12712, 12976, 22708, 25424, 45416, 90832, 184097, 368194, 736388, 1288679, 1472776, 2577358, 2945552, 5154716, 10309432, 20618864]

約数ペア:

[(1, 20618864), (2, 10309432), (4, 5154716), (7, 2945552), (8, 2577358), (14, 1472776), (16, 1288679), (28, 736388), (56, 368194), (112, 184097), (227, 90832), (454, 45416), (811, 25424), (908, 22708), (1589, 12976), (1622, 12712), (1816, 11354), (3178, 6488), (3244, 6356), (3632, 5677)]