31473729

素因数分解:

$3^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1$

素因数の和:179

約数の個数: 72

約数和(自身を含む): 57620160

約数和(自身を除く): 26146431

約数列:

[1, 3, 7, 9, 21, 23, 29, 49, 63, 69, 87, 107, 147, 161, 203, 207, 261, 321, 441, 483, 609, 667, 749, 963, 1127, 1421, 1449, 1827, 2001, 2247, 2461, 3103, 3381, 4263, 4669, 5243, 6003, 6741, 7383, 9309, 10143, 12789, 14007, 15729, 17227, 21721, 22149, 27927, 32683, 42021, 47187, 51681, 65163, 71369, 98049, 120589, 152047, 155043, 195489, 214107, 294147, 361767, 456141, 499583, 642321, 1085301, 1368423, 1498749, 3497081, 4496247, 10491243, 31473729]

約数ペア:

[(1, 31473729), (3, 10491243), (7, 4496247), (9, 3497081), (21, 1498749), (23, 1368423), (29, 1085301), (49, 642321), (63, 499583), (69, 456141), (87, 361767), (107, 294147), (147, 214107), (161, 195489), (203, 155043), (207, 152047), (261, 120589), (321, 98049), (441, 71369), (483, 65163), (609, 51681), (667, 47187), (749, 42021), (963, 32683), (1127, 27927), (1421, 22149), (1449, 21721), (1827, 17227), (2001, 15729), (2247, 14007), (2461, 12789), (3103, 10143), (3381, 9309), (4263, 7383), (4669, 6741), (5243, 6003)]