18817372

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:231

約数の個数: 72

約数和(自身を含む): 41879040

約数和(自身を除く): 23061668

約数列:

[1, 2, 4, 7, 14, 19, 28, 31, 38, 49, 62, 76, 98, 124, 133, 163, 196, 217, 266, 326, 434, 532, 589, 652, 868, 931, 1141, 1178, 1519, 1862, 2282, 2356, 3038, 3097, 3724, 4123, 4564, 5053, 6076, 6194, 7987, 8246, 10106, 12388, 15974, 16492, 20212, 21679, 28861, 31948, 35371, 43358, 57722, 70742, 86716, 96007, 115444, 141484, 151753, 192014, 247597, 303506, 384028, 495194, 607012, 672049, 990388, 1344098, 2688196, 4704343, 9408686, 18817372]

約数ペア:

[(1, 18817372), (2, 9408686), (4, 4704343), (7, 2688196), (14, 1344098), (19, 990388), (28, 672049), (31, 607012), (38, 495194), (49, 384028), (62, 303506), (76, 247597), (98, 192014), (124, 151753), (133, 141484), (163, 115444), (196, 96007), (217, 86716), (266, 70742), (326, 57722), (434, 43358), (532, 35371), (589, 31948), (652, 28861), (868, 21679), (931, 20212), (1141, 16492), (1178, 15974), (1519, 12388), (1862, 10106), (2282, 8246), (2356, 7987), (3038, 6194), (3097, 6076), (3724, 5053), (4123, 4564)]