18421792

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{739}}^1$

素因数の和:809

約数の個数: 48

約数和(自身を含む): 39160800

約数和(自身を除く): 20739008

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 41, 76, 82, 152, 164, 304, 328, 608, 656, 739, 779, 1312, 1478, 1558, 2956, 3116, 5912, 6232, 11824, 12464, 14041, 23648, 24928, 28082, 30299, 56164, 60598, 112328, 121196, 224656, 242392, 449312, 484784, 575681, 969568, 1151362, 2302724, 4605448, 9210896, 18421792]

約数ペア:

[(1, 18421792), (2, 9210896), (4, 4605448), (8, 2302724), (16, 1151362), (19, 969568), (32, 575681), (38, 484784), (41, 449312), (76, 242392), (82, 224656), (152, 121196), (164, 112328), (304, 60598), (328, 56164), (608, 30299), (656, 28082), (739, 24928), (779, 23648), (1312, 14041), (1478, 12464), (1558, 11824), (2956, 6232), (3116, 5912)]