18742647

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{173}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 32372352

約数和(自身を除く): 13629705

約数列:

[1, 3, 7, 11, 21, 33, 49, 67, 77, 147, 173, 201, 231, 469, 519, 539, 737, 1211, 1407, 1617, 1903, 2211, 3283, 3633, 5159, 5709, 8477, 9849, 11591, 13321, 15477, 25431, 34773, 36113, 39963, 81137, 93247, 108339, 127501, 243411, 279741, 382503, 567959, 892507, 1703877, 2677521, 6247549, 18742647]

約数ペア:

[(1, 18742647), (3, 6247549), (7, 2677521), (11, 1703877), (21, 892507), (33, 567959), (49, 382503), (67, 279741), (77, 243411), (147, 127501), (173, 108339), (201, 93247), (231, 81137), (469, 39963), (519, 36113), (539, 34773), (737, 25431), (1211, 15477), (1407, 13321), (1617, 11591), (1903, 9849), (2211, 8477), (3283, 5709), (3633, 5159)]