21511542

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{3491}}^1$

素因数の和:3588

約数の個数: 32

約数和(自身を含む): 46932480

約数和(自身を除く): 25420938

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 79, 158, 237, 474, 1027, 2054, 3081, 3491, 6162, 6982, 10473, 20946, 45383, 90766, 136149, 272298, 275789, 551578, 827367, 1654734, 3585257, 7170514, 10755771, 21511542]

約数ペア:

[(1, 21511542), (2, 10755771), (3, 7170514), (6, 3585257), (13, 1654734), (26, 827367), (39, 551578), (78, 275789), (79, 272298), (158, 136149), (237, 90766), (474, 45383), (1027, 20946), (2054, 10473), (3081, 6982), (3491, 6162)]