21207576

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{673}}^1$

素因数の和:796

約数の個数: 64

約数和(自身を含む): 57748320

約数和(自身を除く): 36540744

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 101, 104, 156, 202, 303, 312, 404, 606, 673, 808, 1212, 1313, 1346, 2019, 2424, 2626, 2692, 3939, 4038, 5252, 5384, 7878, 8076, 8749, 10504, 15756, 16152, 17498, 26247, 31512, 34996, 52494, 67973, 69992, 104988, 135946, 203919, 209976, 271892, 407838, 543784, 815676, 883649, 1631352, 1767298, 2650947, 3534596, 5301894, 7069192, 10603788, 21207576]

約数ペア:

[(1, 21207576), (2, 10603788), (3, 7069192), (4, 5301894), (6, 3534596), (8, 2650947), (12, 1767298), (13, 1631352), (24, 883649), (26, 815676), (39, 543784), (52, 407838), (78, 271892), (101, 209976), (104, 203919), (156, 135946), (202, 104988), (303, 69992), (312, 67973), (404, 52494), (606, 34996), (673, 31512), (808, 26247), (1212, 17498), (1313, 16152), (1346, 15756), (2019, 10504), (2424, 8749), (2626, 8076), (2692, 7878), (3939, 5384), (4038, 5252)]