18478108

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2$

素因数の和:119

約数の個数: 72

約数和(自身を含む): 40037760

約数和(自身を除く): 21559652

約数列:

[1, 2, 4, 11, 19, 22, 23, 31, 38, 44, 46, 62, 76, 92, 124, 209, 253, 341, 418, 437, 506, 589, 682, 713, 836, 874, 961, 1012, 1178, 1364, 1426, 1748, 1922, 2356, 2852, 3844, 4807, 6479, 7843, 9614, 10571, 12958, 13547, 15686, 18259, 19228, 21142, 22103, 25916, 27094, 31372, 36518, 42284, 44206, 54188, 73036, 88412, 149017, 200849, 243133, 298034, 401698, 419957, 486266, 596068, 803396, 839914, 972532, 1679828, 4619527, 9239054, 18478108]

約数ペア:

[(1, 18478108), (2, 9239054), (4, 4619527), (11, 1679828), (19, 972532), (22, 839914), (23, 803396), (31, 596068), (38, 486266), (44, 419957), (46, 401698), (62, 298034), (76, 243133), (92, 200849), (124, 149017), (209, 88412), (253, 73036), (341, 54188), (418, 44206), (437, 42284), (506, 36518), (589, 31372), (682, 27094), (713, 25916), (836, 22103), (874, 21142), (961, 19228), (1012, 18259), (1178, 15686), (1364, 13547), (1426, 12958), (1748, 10571), (1922, 9614), (2356, 7843), (2852, 6479), (3844, 4807)]