21464300

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1$

素因数の和:136

約数の個数: 144

約数和(自身を含む): 58329600

約数和(自身を除く): 36865300

約数列:

[1, 2, 4, 5, 10, 11, 13, 19, 20, 22, 25, 26, 38, 44, 50, 52, 55, 65, 76, 79, 95, 100, 110, 130, 143, 158, 190, 209, 220, 247, 260, 275, 286, 316, 325, 380, 395, 418, 475, 494, 550, 572, 650, 715, 790, 836, 869, 950, 988, 1027, 1045, 1100, 1235, 1300, 1430, 1501, 1580, 1738, 1900, 1975, 2054, 2090, 2470, 2717, 2860, 3002, 3476, 3575, 3950, 4108, 4180, 4345, 4940, 5135, 5225, 5434, 6004, 6175, 7150, 7505, 7900, 8690, 10270, 10450, 10868, 11297, 12350, 13585, 14300, 15010, 16511, 17380, 19513, 20540, 20900, 21725, 22594, 24700, 25675, 27170, 30020, 33022, 37525, 39026, 43450, 45188, 51350, 54340, 56485, 66044, 67925, 75050, 78052, 82555, 86900, 97565, 102700, 112970, 135850, 150100, 165110, 195130, 214643, 225940, 271700, 282425, 330220, 390260, 412775, 429286, 487825, 564850, 825550, 858572, 975650, 1073215, 1129700, 1651100, 1951300, 2146430, 4292860, 5366075, 10732150, 21464300]

約数ペア:

[(1, 21464300), (2, 10732150), (4, 5366075), (5, 4292860), (10, 2146430), (11, 1951300), (13, 1651100), (19, 1129700), (20, 1073215), (22, 975650), (25, 858572), (26, 825550), (38, 564850), (44, 487825), (50, 429286), (52, 412775), (55, 390260), (65, 330220), (76, 282425), (79, 271700), (95, 225940), (100, 214643), (110, 195130), (130, 165110), (143, 150100), (158, 135850), (190, 112970), (209, 102700), (220, 97565), (247, 86900), (260, 82555), (275, 78052), (286, 75050), (316, 67925), (325, 66044), (380, 56485), (395, 54340), (418, 51350), (475, 45188), (494, 43450), (550, 39026), (572, 37525), (650, 33022), (715, 30020), (790, 27170), (836, 25675), (869, 24700), (950, 22594), (988, 21725), (1027, 20900), (1045, 20540), (1100, 19513), (1235, 17380), (1300, 16511), (1430, 15010), (1501, 14300), (1580, 13585), (1738, 12350), (1900, 11297), (1975, 10868), (2054, 10450), (2090, 10270), (2470, 8690), (2717, 7900), (2860, 7505), (3002, 7150), (3476, 6175), (3575, 6004), (3950, 5434), (4108, 5225), (4180, 5135), (4345, 4940)]