18027884

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1$

素因数の和:187

約数の個数: 72

約数和(自身を含む): 39836160

約数和(自身を除く): 21808276

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 47, 49, 76, 94, 98, 103, 133, 188, 196, 206, 266, 329, 412, 532, 658, 721, 893, 931, 1316, 1442, 1786, 1862, 1957, 2303, 2884, 3572, 3724, 3914, 4606, 4841, 5047, 6251, 7828, 9212, 9682, 10094, 12502, 13699, 19364, 20188, 25004, 27398, 33887, 43757, 54796, 67774, 87514, 91979, 95893, 135548, 175028, 183958, 191786, 237209, 367916, 383572, 474418, 643853, 948836, 1287706, 2575412, 4506971, 9013942, 18027884]

約数ペア:

[(1, 18027884), (2, 9013942), (4, 4506971), (7, 2575412), (14, 1287706), (19, 948836), (28, 643853), (38, 474418), (47, 383572), (49, 367916), (76, 237209), (94, 191786), (98, 183958), (103, 175028), (133, 135548), (188, 95893), (196, 91979), (206, 87514), (266, 67774), (329, 54796), (412, 43757), (532, 33887), (658, 27398), (721, 25004), (893, 20188), (931, 19364), (1316, 13699), (1442, 12502), (1786, 10094), (1862, 9682), (1957, 9212), (2303, 7828), (2884, 6251), (3572, 5047), (3724, 4841), (3914, 4606)]