20366787

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{631}}^1$

素因数の和:723

約数の個数: 32

約数和(自身を含む): 32762880

約数和(自身を除く): 12396093

約数列:

[1, 3, 7, 21, 29, 53, 87, 159, 203, 371, 609, 631, 1113, 1537, 1893, 4417, 4611, 10759, 13251, 18299, 32277, 33443, 54897, 100329, 128093, 234101, 384279, 702303, 969847, 2909541, 6788929, 20366787]

約数ペア:

[(1, 20366787), (3, 6788929), (7, 2909541), (21, 969847), (29, 702303), (53, 384279), (87, 234101), (159, 128093), (203, 100329), (371, 54897), (609, 33443), (631, 32277), (1113, 18299), (1537, 13251), (1893, 10759), (4417, 4611)]