208360917

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{229}}^1\times {\mathrm{239}}^1$

素因数の和:527

約数の個数: 40

約数和(自身を含む): 320601600

約数和(自身を除く): 112240683

約数列:

[1, 3, 9, 27, 47, 81, 141, 229, 239, 423, 687, 717, 1269, 2061, 2151, 3807, 6183, 6453, 10763, 11233, 18549, 19359, 32289, 33699, 54731, 96867, 101097, 164193, 290601, 303291, 492579, 871803, 909873, 1477737, 2572357, 4433211, 7717071, 23151213, 69453639, 208360917]

約数ペア:

[(1, 208360917), (3, 69453639), (9, 23151213), (27, 7717071), (47, 4433211), (81, 2572357), (141, 1477737), (229, 909873), (239, 871803), (423, 492579), (687, 303291), (717, 290601), (1269, 164193), (2061, 101097), (2151, 96867), (3807, 54731), (6183, 33699), (6453, 32289), (10763, 19359), (11233, 18549)]