21316992

素因数分解:

$2^7\times 3^1\times {\mathrm{43}}^1\times {\mathrm{1291}}^1$

素因数の和:1351

約数の個数: 64

約数和(自身を含む): 57984960

約数和(自身を除く): 36667968

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 43, 48, 64, 86, 96, 128, 129, 172, 192, 258, 344, 384, 516, 688, 1032, 1291, 1376, 2064, 2582, 2752, 3873, 4128, 5164, 5504, 7746, 8256, 10328, 15492, 16512, 20656, 30984, 41312, 55513, 61968, 82624, 111026, 123936, 165248, 166539, 222052, 247872, 333078, 444104, 495744, 666156, 888208, 1332312, 1776416, 2664624, 3552832, 5329248, 7105664, 10658496, 21316992]

約数ペア:

[(1, 21316992), (2, 10658496), (3, 7105664), (4, 5329248), (6, 3552832), (8, 2664624), (12, 1776416), (16, 1332312), (24, 888208), (32, 666156), (43, 495744), (48, 444104), (64, 333078), (86, 247872), (96, 222052), (128, 166539), (129, 165248), (172, 123936), (192, 111026), (258, 82624), (344, 61968), (384, 55513), (516, 41312), (688, 30984), (1032, 20656), (1291, 16512), (1376, 15492), (2064, 10328), (2582, 8256), (2752, 7746), (3873, 5504), (4128, 5164)]