221082004

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{857}}^1$

素因数の和:937

約数の個数: 72

約数和(自身を含む): 469693224

約数和(自身を除く): 248611220

約数列:

[1, 2, 4, 11, 13, 22, 26, 41, 44, 52, 82, 121, 143, 164, 242, 286, 451, 484, 533, 572, 857, 902, 1066, 1573, 1714, 1804, 2132, 3146, 3428, 4961, 5863, 6292, 9427, 9922, 11141, 11726, 18854, 19844, 22282, 23452, 35137, 37708, 44564, 64493, 70274, 103697, 122551, 128986, 140548, 207394, 245102, 257972, 386507, 414788, 456781, 490204, 773014, 913562, 1348061, 1546028, 1827124, 2696122, 4251577, 5024591, 5392244, 8503154, 10049182, 17006308, 20098364, 55270501, 110541002, 221082004]

約数ペア:

[(1, 221082004), (2, 110541002), (4, 55270501), (11, 20098364), (13, 17006308), (22, 10049182), (26, 8503154), (41, 5392244), (44, 5024591), (52, 4251577), (82, 2696122), (121, 1827124), (143, 1546028), (164, 1348061), (242, 913562), (286, 773014), (451, 490204), (484, 456781), (533, 414788), (572, 386507), (857, 257972), (902, 245102), (1066, 207394), (1573, 140548), (1714, 128986), (1804, 122551), (2132, 103697), (3146, 70274), (3428, 64493), (4961, 44564), (5863, 37708), (6292, 35137), (9427, 23452), (9922, 22282), (11141, 19844), (11726, 18854)]