31920141

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:333

約数の個数: 32

約数和(自身を含む): 47961216

約数和(自身を除く): 16041075

約数列:

[1, 3, 11, 33, 61, 101, 157, 183, 303, 471, 671, 1111, 1727, 2013, 3333, 5181, 6161, 9577, 15857, 18483, 28731, 47571, 67771, 105347, 174427, 203313, 316041, 523281, 967277, 2901831, 10640047, 31920141]

約数ペア:

[(1, 31920141), (3, 10640047), (11, 2901831), (33, 967277), (61, 523281), (101, 316041), (157, 203313), (183, 174427), (303, 105347), (471, 67771), (671, 47571), (1111, 28731), (1727, 18483), (2013, 15857), (3333, 9577), (5181, 6161)]