19987848

素因数分解:

$2^3\times 3^2\times {\mathrm{19}}^2\times {\mathrm{769}}^1$

素因数の和:819

約数の個数: 72

約数和(自身を含む): 57207150

約数和(自身を除く): 37219302

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 36, 38, 57, 72, 76, 114, 152, 171, 228, 342, 361, 456, 684, 722, 769, 1083, 1368, 1444, 1538, 2166, 2307, 2888, 3076, 3249, 4332, 4614, 6152, 6498, 6921, 8664, 9228, 12996, 13842, 14611, 18456, 25992, 27684, 29222, 43833, 55368, 58444, 87666, 116888, 131499, 175332, 262998, 277609, 350664, 525996, 555218, 832827, 1051992, 1110436, 1665654, 2220872, 2498481, 3331308, 4996962, 6662616, 9993924, 19987848]

約数ペア:

[(1, 19987848), (2, 9993924), (3, 6662616), (4, 4996962), (6, 3331308), (8, 2498481), (9, 2220872), (12, 1665654), (18, 1110436), (19, 1051992), (24, 832827), (36, 555218), (38, 525996), (57, 350664), (72, 277609), (76, 262998), (114, 175332), (152, 131499), (171, 116888), (228, 87666), (342, 58444), (361, 55368), (456, 43833), (684, 29222), (722, 27684), (769, 25992), (1083, 18456), (1368, 14611), (1444, 13842), (1538, 12996), (2166, 9228), (2307, 8664), (2888, 6921), (3076, 6498), (3249, 6152), (4332, 4614)]