21316368

素因数分解:

$2^4\times 3^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{173}}^1$

素因数の和:352

約数の個数: 80

約数和(自身を含む): 59031936

約数和(自身を除く): 37715568

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 34, 48, 51, 68, 102, 136, 151, 173, 204, 272, 302, 346, 408, 453, 519, 604, 692, 816, 906, 1038, 1208, 1384, 1812, 2076, 2416, 2567, 2768, 2941, 3624, 4152, 5134, 5882, 7248, 7701, 8304, 8823, 10268, 11764, 15402, 17646, 20536, 23528, 26123, 30804, 35292, 41072, 47056, 52246, 61608, 70584, 78369, 104492, 123216, 141168, 156738, 208984, 313476, 417968, 444091, 626952, 888182, 1253904, 1332273, 1776364, 2664546, 3552728, 5329092, 7105456, 10658184, 21316368]

約数ペア:

[(1, 21316368), (2, 10658184), (3, 7105456), (4, 5329092), (6, 3552728), (8, 2664546), (12, 1776364), (16, 1332273), (17, 1253904), (24, 888182), (34, 626952), (48, 444091), (51, 417968), (68, 313476), (102, 208984), (136, 156738), (151, 141168), (173, 123216), (204, 104492), (272, 78369), (302, 70584), (346, 61608), (408, 52246), (453, 47056), (519, 41072), (604, 35292), (692, 30804), (816, 26123), (906, 23528), (1038, 20536), (1208, 17646), (1384, 15402), (1812, 11764), (2076, 10268), (2416, 8823), (2567, 8304), (2768, 7701), (2941, 7248), (3624, 5882), (4152, 5134)]