18921245

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{769}}^1$

素因数の和:837

約数の個数: 32

約数和(自身を含む): 28089600

約数和(自身を除く): 9168355

約数列:

[1, 5, 7, 19, 35, 37, 95, 133, 185, 259, 665, 703, 769, 1295, 3515, 3845, 4921, 5383, 14611, 24605, 26915, 28453, 73055, 102277, 142265, 199171, 511385, 540607, 995855, 2703035, 3784249, 18921245]

約数ペア:

[(1, 18921245), (5, 3784249), (7, 2703035), (19, 995855), (35, 540607), (37, 511385), (95, 199171), (133, 142265), (185, 102277), (259, 73055), (665, 28453), (703, 26915), (769, 24605), (1295, 14611), (3515, 5383), (3845, 4921)]