21167444

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{4157}}^1$

素因数の和:4247

約数の個数: 24

約数和(自身を含む): 39584160

約数和(自身を除く): 18416716

約数列:

[1, 2, 4, 19, 38, 67, 76, 134, 268, 1273, 2546, 4157, 5092, 8314, 16628, 78983, 157966, 278519, 315932, 557038, 1114076, 5291861, 10583722, 21167444]

約数ペア:

[(1, 21167444), (2, 10583722), (4, 5291861), (19, 1114076), (38, 557038), (67, 315932), (76, 278519), (134, 157966), (268, 78983), (1273, 16628), (2546, 8314), (4157, 5092)]