20121817835

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{352057}}^1$

素因数の和:352163

約数の個数: 32

約数和(自身を含む): 29201098752

約数和(自身を除く): 9079280917

約数列:

[1, 5, 7, 23, 35, 71, 115, 161, 355, 497, 805, 1633, 2485, 8165, 11431, 57155, 352057, 1760285, 2464399, 8097311, 12321995, 24996047, 40486555, 56681177, 124980235, 174972329, 283405885, 574909081, 874861645, 2874545405, 4024363567, 20121817835]

約数ペア:

[(1, 20121817835), (5, 4024363567), (7, 2874545405), (23, 874861645), (35, 574909081), (71, 283405885), (115, 174972329), (161, 124980235), (355, 56681177), (497, 40486555), (805, 24996047), (1633, 12321995), (2485, 8097311), (8165, 2464399), (11431, 1760285), (57155, 352057)]