18169328

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{997}}^1$

素因数の和:1089

約数の個数: 40

約数和(自身を含む): 37868112

約数和(自身を除く): 19698784

約数列:

[1, 2, 4, 8, 16, 17, 34, 67, 68, 134, 136, 268, 272, 536, 997, 1072, 1139, 1994, 2278, 3988, 4556, 7976, 9112, 15952, 16949, 18224, 33898, 66799, 67796, 133598, 135592, 267196, 271184, 534392, 1068784, 1135583, 2271166, 4542332, 9084664, 18169328]

約数ペア:

[(1, 18169328), (2, 9084664), (4, 4542332), (8, 2271166), (16, 1135583), (17, 1068784), (34, 534392), (67, 271184), (68, 267196), (134, 135592), (136, 133598), (268, 67796), (272, 66799), (536, 33898), (997, 18224), (1072, 16949), (1139, 15952), (1994, 9112), (2278, 7976), (3988, 4556)]