21091044

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{383}}^1$

素因数の和:756

約数の個数: 48

約数和(自身を含む): 53286912

約数和(自身を除く): 32195868

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 353, 383, 706, 766, 1059, 1149, 1412, 1532, 2118, 2298, 4236, 4589, 4596, 4979, 9178, 9958, 13767, 14937, 18356, 19916, 27534, 29874, 55068, 59748, 135199, 270398, 405597, 540796, 811194, 1622388, 1757587, 3515174, 5272761, 7030348, 10545522, 21091044]

約数ペア:

[(1, 21091044), (2, 10545522), (3, 7030348), (4, 5272761), (6, 3515174), (12, 1757587), (13, 1622388), (26, 811194), (39, 540796), (52, 405597), (78, 270398), (156, 135199), (353, 59748), (383, 55068), (706, 29874), (766, 27534), (1059, 19916), (1149, 18356), (1412, 14937), (1532, 13767), (2118, 9958), (2298, 9178), (4236, 4979), (4589, 4596)]