19879974

素因数分解:

$2^1\times 3^2\times {\mathrm{641}}^1\times {\mathrm{1723}}^1$

素因数の和:2372

約数の個数: 24

約数和(自身を含む): 43165512

約数和(自身を除く): 23285538

約数列:

[1, 2, 3, 6, 9, 18, 641, 1282, 1723, 1923, 3446, 3846, 5169, 5769, 10338, 11538, 15507, 31014, 1104443, 2208886, 3313329, 6626658, 9939987, 19879974]

約数ペア:

[(1, 19879974), (2, 9939987), (3, 6626658), (6, 3313329), (9, 2208886), (18, 1104443), (641, 31014), (1282, 15507), (1723, 11538), (1923, 10338), (3446, 5769), (3846, 5169)]