18929966

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1$

素因数の和:245

約数の個数: 48

約数和(自身を含む): 34473600

約数和(自身を除く): 15543634

約数列:

[1, 2, 11, 19, 22, 23, 38, 46, 121, 179, 209, 242, 253, 358, 418, 437, 506, 874, 1969, 2299, 2783, 3401, 3938, 4117, 4598, 4807, 5566, 6802, 8234, 9614, 21659, 37411, 43318, 45287, 52877, 74822, 78223, 90574, 105754, 156446, 411521, 498157, 823042, 860453, 996314, 1720906, 9464983, 18929966]

約数ペア:

[(1, 18929966), (2, 9464983), (11, 1720906), (19, 996314), (22, 860453), (23, 823042), (38, 498157), (46, 411521), (121, 156446), (179, 105754), (209, 90574), (242, 78223), (253, 74822), (358, 52877), (418, 45287), (437, 43318), (506, 37411), (874, 21659), (1969, 9614), (2299, 8234), (2783, 6802), (3401, 5566), (3938, 4807), (4117, 4598)]