20971676

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{53}}^1$

素因数の和:131

約数の個数: 72

約数和(自身を含む): 45151344

約数和(自身を除く): 24179668

約数列:

[1, 2, 4, 11, 17, 22, 23, 34, 44, 46, 53, 68, 92, 106, 187, 212, 253, 374, 391, 506, 529, 583, 748, 782, 901, 1012, 1058, 1166, 1219, 1564, 1802, 2116, 2332, 2438, 3604, 4301, 4876, 5819, 8602, 8993, 9911, 11638, 13409, 17204, 17986, 19822, 20723, 23276, 26818, 28037, 35972, 39644, 41446, 53636, 56074, 82892, 98923, 112148, 197846, 227953, 308407, 395692, 455906, 476629, 616814, 911812, 953258, 1233628, 1906516, 5242919, 10485838, 20971676]

約数ペア:

[(1, 20971676), (2, 10485838), (4, 5242919), (11, 1906516), (17, 1233628), (22, 953258), (23, 911812), (34, 616814), (44, 476629), (46, 455906), (53, 395692), (68, 308407), (92, 227953), (106, 197846), (187, 112148), (212, 98923), (253, 82892), (374, 56074), (391, 53636), (506, 41446), (529, 39644), (583, 35972), (748, 28037), (782, 26818), (901, 23276), (1012, 20723), (1058, 19822), (1166, 17986), (1219, 17204), (1564, 13409), (1802, 11638), (2116, 9911), (2332, 8993), (2438, 8602), (3604, 5819), (4301, 4876)]