21887206

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{149}}^1\times {\mathrm{607}}^1$

素因数の和:780

約数の個数: 24

約数和(自身を含む): 36388800

約数和(自身を除く): 14501594

約数列:

[1, 2, 11, 22, 121, 149, 242, 298, 607, 1214, 1639, 3278, 6677, 13354, 18029, 36058, 73447, 90443, 146894, 180886, 994873, 1989746, 10943603, 21887206]

約数ペア:

[(1, 21887206), (2, 10943603), (11, 1989746), (22, 994873), (121, 180886), (149, 146894), (242, 90443), (298, 73447), (607, 36058), (1214, 18029), (1639, 13354), (3278, 6677)]