131330409

素因数分解:

$3^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{211}}^1\times {\mathrm{277}}^1$

素因数の和:605

約数の個数: 32

約数和(自身を含む): 203682816

約数和(自身を除く): 72352407

約数列:

[1, 3, 7, 21, 107, 211, 277, 321, 633, 749, 831, 1477, 1939, 2247, 4431, 5817, 22577, 29639, 58447, 67731, 88917, 158039, 175341, 207473, 409129, 474117, 622419, 1227387, 6253829, 18761487, 43776803, 131330409]

約数ペア:

[(1, 131330409), (3, 43776803), (7, 18761487), (21, 6253829), (107, 1227387), (211, 622419), (277, 474117), (321, 409129), (633, 207473), (749, 175341), (831, 158039), (1477, 88917), (1939, 67731), (2247, 58447), (4431, 29639), (5817, 22577)]