388613727

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{281}}^1$

素因数の和:461

約数の個数: 64

約数和(自身を含む): 643230720

約数和(自身を除く): 254616993

約数列:

[1, 3, 9, 17, 23, 27, 51, 69, 131, 153, 207, 281, 391, 393, 459, 621, 843, 1173, 1179, 2227, 2529, 3013, 3519, 3537, 4777, 6463, 6681, 7587, 9039, 10557, 14331, 19389, 20043, 27117, 36811, 42993, 51221, 58167, 60129, 81351, 109871, 110433, 128979, 153663, 174501, 329613, 331299, 460989, 625787, 846653, 988839, 993897, 1382967, 1877361, 2539959, 2966517, 5632083, 7619877, 14393101, 16896249, 22859631, 43179303, 129537909, 388613727]

約数ペア:

[(1, 388613727), (3, 129537909), (9, 43179303), (17, 22859631), (23, 16896249), (27, 14393101), (51, 7619877), (69, 5632083), (131, 2966517), (153, 2539959), (207, 1877361), (281, 1382967), (391, 993897), (393, 988839), (459, 846653), (621, 625787), (843, 460989), (1173, 331299), (1179, 329613), (2227, 174501), (2529, 153663), (3013, 128979), (3519, 110433), (3537, 109871), (4777, 81351), (6463, 60129), (6681, 58167), (7587, 51221), (9039, 42993), (10557, 36811), (14331, 27117), (19389, 20043)]