21493004

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{11171}}^1$

素因数の和:11225

約数の個数: 24

約数和(自身を含む): 41604528

約数和(自身を除く): 20111524

約数列:

[1, 2, 4, 13, 26, 37, 52, 74, 148, 481, 962, 1924, 11171, 22342, 44684, 145223, 290446, 413327, 580892, 826654, 1653308, 5373251, 10746502, 21493004]

約数ペア:

[(1, 21493004), (2, 10746502), (4, 5373251), (13, 1653308), (26, 826654), (37, 580892), (52, 413327), (74, 290446), (148, 145223), (481, 44684), (962, 22342), (1924, 11171)]