21247356

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{10477}}^1$

素因数の和:10510

約数の個数: 36

約数和(自身を含む): 53689272

約数和(自身を除く): 32441916

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 169, 338, 507, 676, 1014, 2028, 10477, 20954, 31431, 41908, 62862, 125724, 136201, 272402, 408603, 544804, 817206, 1634412, 1770613, 3541226, 5311839, 7082452, 10623678, 21247356]

約数ペア:

[(1, 21247356), (2, 10623678), (3, 7082452), (4, 5311839), (6, 3541226), (12, 1770613), (13, 1634412), (26, 817206), (39, 544804), (52, 408603), (78, 272402), (156, 136201), (169, 125724), (338, 62862), (507, 41908), (676, 31431), (1014, 20954), (2028, 10477)]