19691898

素因数分解:

$2^1\times 3^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1\times {\mathrm{311}}^1$

素因数の和:550

約数の個数: 32

約数和(自身を含む): 40390272

約数和(自身を除く): 20698374

約数列:

[1, 2, 3, 6, 61, 122, 173, 183, 311, 346, 366, 519, 622, 933, 1038, 1866, 10553, 18971, 21106, 31659, 37942, 53803, 56913, 63318, 107606, 113826, 161409, 322818, 3281983, 6563966, 9845949, 19691898]

約数ペア:

[(1, 19691898), (2, 9845949), (3, 6563966), (6, 3281983), (61, 322818), (122, 161409), (173, 113826), (183, 107606), (311, 63318), (346, 56913), (366, 53803), (519, 37942), (622, 31659), (933, 21106), (1038, 18971), (1866, 10553)]