42138579

素因数分解:

$3^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{1321}}^1$

素因数の和:1376

約数の個数: 32

約数和(自身を含む): 67686400

約数和(自身を除く): 25547821

約数列:

[1, 3, 7, 21, 31, 49, 93, 147, 217, 343, 651, 1029, 1321, 1519, 3963, 4557, 9247, 10633, 27741, 31899, 40951, 64729, 122853, 194187, 286657, 453103, 859971, 1359309, 2006599, 6019797, 14046193, 42138579]

約数ペア:

[(1, 42138579), (3, 14046193), (7, 6019797), (21, 2006599), (31, 1359309), (49, 859971), (93, 453103), (147, 286657), (217, 194187), (343, 122853), (651, 64729), (1029, 40951), (1321, 31899), (1519, 27741), (3963, 10633), (4557, 9247)]