20171672

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{691}}^1$

素因数の和:827

約数の個数: 32

約数和(自身を含む): 39236400

約数和(自身を除く): 19064728

約数列:

[1, 2, 4, 8, 41, 82, 89, 164, 178, 328, 356, 691, 712, 1382, 2764, 3649, 5528, 7298, 14596, 28331, 29192, 56662, 61499, 113324, 122998, 226648, 245996, 491992, 2521459, 5042918, 10085836, 20171672]

約数ペア:

[(1, 20171672), (2, 10085836), (4, 5042918), (8, 2521459), (41, 491992), (82, 245996), (89, 226648), (164, 122998), (178, 113324), (328, 61499), (356, 56662), (691, 29192), (712, 28331), (1382, 14596), (2764, 7298), (3649, 5528)]