21411676

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1$

素因数の和:163

約数の個数: 72

約数和(自身を含む): 45983952

約数和(自身を除く): 24572276

約数列:

[1, 2, 4, 11, 13, 22, 26, 41, 44, 52, 82, 83, 121, 143, 164, 166, 242, 286, 332, 451, 484, 533, 572, 902, 913, 1066, 1079, 1573, 1804, 1826, 2132, 2158, 3146, 3403, 3652, 4316, 4961, 5863, 6292, 6806, 9922, 10043, 11726, 11869, 13612, 19844, 20086, 23452, 23738, 37433, 40172, 44239, 47476, 64493, 74866, 88478, 128986, 130559, 149732, 176956, 257972, 261118, 411763, 486629, 522236, 823526, 973258, 1647052, 1946516, 5352919, 10705838, 21411676]

約数ペア:

[(1, 21411676), (2, 10705838), (4, 5352919), (11, 1946516), (13, 1647052), (22, 973258), (26, 823526), (41, 522236), (44, 486629), (52, 411763), (82, 261118), (83, 257972), (121, 176956), (143, 149732), (164, 130559), (166, 128986), (242, 88478), (286, 74866), (332, 64493), (451, 47476), (484, 44239), (533, 40172), (572, 37433), (902, 23738), (913, 23452), (1066, 20086), (1079, 19844), (1573, 13612), (1804, 11869), (1826, 11726), (2132, 10043), (2158, 9922), (3146, 6806), (3403, 6292), (3652, 5863), (4316, 4961)]