388373517

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{83}}^1\times {\mathrm{257}}^1$

素因数の和:387

約数の個数: 72

約数和(自身を含む): 691943616

約数和(自身を除く): 303570099

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 83, 119, 153, 249, 257, 289, 357, 581, 747, 771, 867, 1071, 1411, 1743, 1799, 2023, 2313, 2601, 4233, 4369, 5229, 5397, 6069, 9877, 12699, 13107, 16191, 18207, 21331, 23987, 29631, 30583, 39321, 63993, 71961, 74273, 88893, 91749, 149317, 167909, 191979, 215883, 222819, 275247, 362627, 447951, 503727, 519911, 668457, 1087881, 1343853, 1511181, 1559733, 2538389, 3263643, 4679199, 6164659, 7615167, 18493977, 22845501, 43152613, 55481931, 129457839, 388373517]

約数ペア:

[(1, 388373517), (3, 129457839), (7, 55481931), (9, 43152613), (17, 22845501), (21, 18493977), (51, 7615167), (63, 6164659), (83, 4679199), (119, 3263643), (153, 2538389), (249, 1559733), (257, 1511181), (289, 1343853), (357, 1087881), (581, 668457), (747, 519911), (771, 503727), (867, 447951), (1071, 362627), (1411, 275247), (1743, 222819), (1799, 215883), (2023, 191979), (2313, 167909), (2601, 149317), (4233, 91749), (4369, 88893), (5229, 74273), (5397, 71961), (6069, 63993), (9877, 39321), (12699, 30583), (13107, 29631), (16191, 23987), (18207, 21331)]