21085272

素因数分解:

$2^3\times 3^4\times {\mathrm{13}}^1\times {\mathrm{2503}}^1$

素因数の和:2534

約数の個数: 80

約数和(自身を含む): 63626640

約数和(自身を除く): 42541368

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 39, 52, 54, 72, 78, 81, 104, 108, 117, 156, 162, 216, 234, 312, 324, 351, 468, 648, 702, 936, 1053, 1404, 2106, 2503, 2808, 4212, 5006, 7509, 8424, 10012, 15018, 20024, 22527, 30036, 32539, 45054, 60072, 65078, 67581, 90108, 97617, 130156, 135162, 180216, 195234, 202743, 260312, 270324, 292851, 390468, 405486, 540648, 585702, 780936, 810972, 878553, 1171404, 1621944, 1757106, 2342808, 2635659, 3514212, 5271318, 7028424, 10542636, 21085272]

約数ペア:

[(1, 21085272), (2, 10542636), (3, 7028424), (4, 5271318), (6, 3514212), (8, 2635659), (9, 2342808), (12, 1757106), (13, 1621944), (18, 1171404), (24, 878553), (26, 810972), (27, 780936), (36, 585702), (39, 540648), (52, 405486), (54, 390468), (72, 292851), (78, 270324), (81, 260312), (104, 202743), (108, 195234), (117, 180216), (156, 135162), (162, 130156), (216, 97617), (234, 90108), (312, 67581), (324, 65078), (351, 60072), (468, 45054), (648, 32539), (702, 30036), (936, 22527), (1053, 20024), (1404, 15018), (2106, 10012), (2503, 8424), (2808, 7509), (4212, 5006)]