21087924

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{12289}}^1$

素因数の和:12320

約数の個数: 48

約数和(自身を含む): 57812160

約数和(自身を除く): 36724236

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 22, 26, 33, 39, 44, 52, 66, 78, 132, 143, 156, 286, 429, 572, 858, 1716, 12289, 24578, 36867, 49156, 73734, 135179, 147468, 159757, 270358, 319514, 405537, 479271, 540716, 639028, 811074, 958542, 1622148, 1757327, 1917084, 3514654, 5271981, 7029308, 10543962, 21087924]

約数ペア:

[(1, 21087924), (2, 10543962), (3, 7029308), (4, 5271981), (6, 3514654), (11, 1917084), (12, 1757327), (13, 1622148), (22, 958542), (26, 811074), (33, 639028), (39, 540716), (44, 479271), (52, 405537), (66, 319514), (78, 270358), (132, 159757), (143, 147468), (156, 135179), (286, 73734), (429, 49156), (572, 36867), (858, 24578), (1716, 12289)]