20131781205

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{13831}}^1\times {\mathrm{4219}}^1$

素因数の和:18081

約数の個数: 32

約数和(自身を含む): 33621719040

約数和(自身を除く): 13489937835

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 4219, 12657, 13831, 21095, 41493, 63285, 69155, 97037, 207465, 291111, 318113, 485185, 954339, 1455555, 1590565, 4771695, 58352989, 175058967, 291764945, 875294835, 1342118747, 4026356241, 6710593735, 20131781205]

約数ペア:

[(1, 20131781205), (3, 6710593735), (5, 4026356241), (15, 1342118747), (23, 875294835), (69, 291764945), (115, 175058967), (345, 58352989), (4219, 4771695), (12657, 1590565), (13831, 1455555), (21095, 954339), (41493, 485185), (63285, 318113), (69155, 291111), (97037, 207465)]