21068284

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{619}}^1$

素因数の和:817

約数の個数: 24

約数和(自身を含む): 37775360

約数和(自身を除く): 16707076

約数列:

[1, 2, 4, 67, 127, 134, 254, 268, 508, 619, 1238, 2476, 8509, 17018, 34036, 41473, 78613, 82946, 157226, 165892, 314452, 5267071, 10534142, 21068284]

約数ペア:

[(1, 21068284), (2, 10534142), (4, 5267071), (67, 314452), (127, 165892), (134, 157226), (254, 82946), (268, 78613), (508, 41473), (619, 34036), (1238, 17018), (2476, 8509)]