172947879

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{193}}^1$

素因数の和:278

約数の個数: 80

約数和(自身を含む): 299716032

約数和(自身を除く): 126768153

約数列:

[1, 3, 9, 13, 23, 27, 37, 39, 69, 81, 111, 117, 193, 207, 299, 333, 351, 481, 579, 621, 851, 897, 999, 1053, 1443, 1737, 1863, 2509, 2553, 2691, 2997, 4329, 4439, 5211, 7141, 7527, 7659, 8073, 11063, 12987, 13317, 15633, 21423, 22581, 22977, 24219, 33189, 38961, 39951, 57707, 64269, 67743, 68931, 92833, 99567, 119853, 164243, 173121, 192807, 203229, 278499, 298701, 359559, 492729, 519363, 578421, 835497, 896103, 1478187, 1558089, 2135159, 2506491, 4434561, 4674267, 6405477, 7519473, 13303683, 19216431, 57649293, 172947879]

約数ペア:

[(1, 172947879), (3, 57649293), (9, 19216431), (13, 13303683), (23, 7519473), (27, 6405477), (37, 4674267), (39, 4434561), (69, 2506491), (81, 2135159), (111, 1558089), (117, 1478187), (193, 896103), (207, 835497), (299, 578421), (333, 519363), (351, 492729), (481, 359559), (579, 298701), (621, 278499), (851, 203229), (897, 192807), (999, 173121), (1053, 164243), (1443, 119853), (1737, 99567), (1863, 92833), (2509, 68931), (2553, 67743), (2691, 64269), (2997, 57707), (4329, 39951), (4439, 38961), (5211, 33189), (7141, 24219), (7527, 22977), (7659, 22581), (8073, 21423), (11063, 15633), (12987, 13317)]