20895784

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{28703}}^1$

素因数の和:28729

約数の個数: 32

約数和(自身を含む): 48222720

約数和(自身を除く): 27326936

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 28703, 57406, 114812, 200921, 229624, 373139, 401842, 746278, 803684, 1492556, 1607368, 2611973, 2985112, 5223946, 10447892, 20895784]

約数ペア:

[(1, 20895784), (2, 10447892), (4, 5223946), (7, 2985112), (8, 2611973), (13, 1607368), (14, 1492556), (26, 803684), (28, 746278), (52, 401842), (56, 373139), (91, 229624), (104, 200921), (182, 114812), (364, 57406), (728, 28703)]