31507833

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{389}}^1$

素因数の和:454

約数の個数: 48

約数和(自身を含む): 53352000

約数和(自身を除く): 21844167

約数列:

[1, 3, 7, 19, 21, 29, 49, 57, 87, 133, 147, 203, 389, 399, 551, 609, 931, 1167, 1421, 1653, 2723, 2793, 3857, 4263, 7391, 8169, 11281, 11571, 19061, 22173, 26999, 33843, 51737, 57183, 78967, 80997, 155211, 214339, 236901, 362159, 552769, 643017, 1086477, 1500373, 1658307, 4501119, 10502611, 31507833]

約数ペア:

[(1, 31507833), (3, 10502611), (7, 4501119), (19, 1658307), (21, 1500373), (29, 1086477), (49, 643017), (57, 552769), (87, 362159), (133, 236901), (147, 214339), (203, 155211), (389, 80997), (399, 78967), (551, 57183), (609, 51737), (931, 33843), (1167, 26999), (1421, 22173), (1653, 19061), (2723, 11571), (2793, 11281), (3857, 8169), (4263, 7391)]