21571888

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2803}}^1$

素因数の和:2861

約数の個数: 40

約数和(自身を含む): 46243568

約数和(自身を除く): 24671680

約数列:

[1, 2, 4, 8, 13, 16, 26, 37, 52, 74, 104, 148, 208, 296, 481, 592, 962, 1924, 2803, 3848, 5606, 7696, 11212, 22424, 36439, 44848, 72878, 103711, 145756, 207422, 291512, 414844, 583024, 829688, 1348243, 1659376, 2696486, 5392972, 10785944, 21571888]

約数ペア:

[(1, 21571888), (2, 10785944), (4, 5392972), (8, 2696486), (13, 1659376), (16, 1348243), (26, 829688), (37, 583024), (52, 414844), (74, 291512), (104, 207422), (148, 145756), (208, 103711), (296, 72878), (481, 44848), (592, 36439), (962, 22424), (1924, 11212), (2803, 7696), (3848, 5606)]