20828492

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{1427}}^1$

素因数の和:1561

約数の個数: 24

約数和(自身を含む): 37784880

約数和(自身を除く): 16956388

約数列:

[1, 2, 4, 41, 82, 89, 164, 178, 356, 1427, 2854, 3649, 5708, 7298, 14596, 58507, 117014, 127003, 234028, 254006, 508012, 5207123, 10414246, 20828492]

約数ペア:

[(1, 20828492), (2, 10414246), (4, 5207123), (41, 508012), (82, 254006), (89, 234028), (164, 127003), (178, 117014), (356, 58507), (1427, 14596), (2854, 7298), (3649, 5708)]