21164228

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{157}}^1\times {\mathrm{503}}^1$

素因数の和:731

約数の個数: 24

約数和(自身を含む): 37904832

約数和(自身を除く): 16740604

約数列:

[1, 2, 4, 67, 134, 157, 268, 314, 503, 628, 1006, 2012, 10519, 21038, 33701, 42076, 67402, 78971, 134804, 157942, 315884, 5291057, 10582114, 21164228]

約数ペア:

[(1, 21164228), (2, 10582114), (4, 5291057), (67, 315884), (134, 157942), (157, 134804), (268, 78971), (314, 67402), (503, 42076), (628, 33701), (1006, 21038), (2012, 10519)]