20902812

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1871}}^1$

素因数の和:1911

約数の個数: 72

約数和(自身を含む): 59754240

約数和(自身を除く): 38851428

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 28, 38, 42, 49, 57, 76, 84, 98, 114, 133, 147, 196, 228, 266, 294, 399, 532, 588, 798, 931, 1596, 1862, 1871, 2793, 3724, 3742, 5586, 5613, 7484, 11172, 11226, 13097, 22452, 26194, 35549, 39291, 52388, 71098, 78582, 91679, 106647, 142196, 157164, 183358, 213294, 248843, 275037, 366716, 426588, 497686, 550074, 746529, 995372, 1100148, 1493058, 1741901, 2986116, 3483802, 5225703, 6967604, 10451406, 20902812]

約数ペア:

[(1, 20902812), (2, 10451406), (3, 6967604), (4, 5225703), (6, 3483802), (7, 2986116), (12, 1741901), (14, 1493058), (19, 1100148), (21, 995372), (28, 746529), (38, 550074), (42, 497686), (49, 426588), (57, 366716), (76, 275037), (84, 248843), (98, 213294), (114, 183358), (133, 157164), (147, 142196), (196, 106647), (228, 91679), (266, 78582), (294, 71098), (399, 52388), (532, 39291), (588, 35549), (798, 26194), (931, 22452), (1596, 13097), (1862, 11226), (1871, 11172), (2793, 7484), (3724, 5613), (3742, 5586)]