21590558

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{787}}^1$

素因数の和:872

約数の個数: 32

約数和(自身を含む): 37445760

約数和(自身を除く): 15855202

約数列:

[1, 2, 11, 22, 29, 43, 58, 86, 319, 473, 638, 787, 946, 1247, 1574, 2494, 8657, 13717, 17314, 22823, 27434, 33841, 45646, 67682, 251053, 372251, 502106, 744502, 981389, 1962778, 10795279, 21590558]

約数ペア:

[(1, 21590558), (2, 10795279), (11, 1962778), (22, 981389), (29, 744502), (43, 502106), (58, 372251), (86, 251053), (319, 67682), (473, 45646), (638, 33841), (787, 27434), (946, 22823), (1247, 17314), (1574, 13717), (2494, 8657)]