21928194

素因数分解:

$2^1\times 3^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{691}}^1$

素因数の和:783

約数の個数: 48

約数和(自身を含む): 49873824

約数和(自身を除く): 27945630

約数列:

[1, 2, 3, 6, 9, 18, 41, 43, 82, 86, 123, 129, 246, 258, 369, 387, 691, 738, 774, 1382, 1763, 2073, 3526, 4146, 5289, 6219, 10578, 12438, 15867, 28331, 29713, 31734, 56662, 59426, 84993, 89139, 169986, 178278, 254979, 267417, 509958, 534834, 1218233, 2436466, 3654699, 7309398, 10964097, 21928194]

約数ペア:

[(1, 21928194), (2, 10964097), (3, 7309398), (6, 3654699), (9, 2436466), (18, 1218233), (41, 534834), (43, 509958), (82, 267417), (86, 254979), (123, 178278), (129, 169986), (246, 89139), (258, 84993), (369, 59426), (387, 56662), (691, 31734), (738, 29713), (774, 28331), (1382, 15867), (1763, 12438), (2073, 10578), (3526, 6219), (4146, 5289)]