218971953

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 339768000

約数和(自身を除く): 120796047

約数列:

[1, 3, 9, 29, 43, 87, 109, 129, 179, 261, 327, 387, 537, 981, 1247, 1611, 3161, 3741, 4687, 5191, 7697, 9483, 11223, 14061, 15573, 19511, 23091, 28449, 42183, 46719, 58533, 69273, 135923, 175599, 223213, 407769, 565819, 669639, 838973, 1223307, 1697457, 2008917, 2516919, 5092371, 7550757, 24330217, 72990651, 218971953]

約数ペア:

[(1, 218971953), (3, 72990651), (9, 24330217), (29, 7550757), (43, 5092371), (87, 2516919), (109, 2008917), (129, 1697457), (179, 1223307), (261, 838973), (327, 669639), (387, 565819), (537, 407769), (981, 223213), (1247, 175599), (1611, 135923), (3161, 69273), (3741, 58533), (4687, 46719), (5191, 42183), (7697, 28449), (9483, 23091), (11223, 19511), (14061, 15573)]