19981544

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{3389}}^1$

素因数の和:3473

約数の個数: 32

約数和(自身を含む): 41493600

約数和(自身を除く): 21512056

約数列:

[1, 2, 4, 8, 11, 22, 44, 67, 88, 134, 268, 536, 737, 1474, 2948, 3389, 5896, 6778, 13556, 27112, 37279, 74558, 149116, 227063, 298232, 454126, 908252, 1816504, 2497693, 4995386, 9990772, 19981544]

約数ペア:

[(1, 19981544), (2, 9990772), (4, 4995386), (8, 2497693), (11, 1816504), (22, 908252), (44, 454126), (67, 298232), (88, 227063), (134, 149116), (268, 74558), (536, 37279), (737, 27112), (1474, 13556), (2948, 6778), (3389, 5896)]