20318361

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:146

約数の個数: 48

約数和(自身を含む): 33976320

約数和(自身を除く): 13657959

約数列:

[1, 3, 7, 21, 23, 31, 59, 69, 93, 161, 177, 217, 413, 483, 529, 651, 713, 1239, 1357, 1587, 1829, 2139, 3703, 4071, 4991, 5487, 9499, 11109, 12803, 14973, 16399, 28497, 31211, 38409, 42067, 49197, 93633, 114793, 126201, 218477, 294469, 344379, 655431, 883407, 967541, 2902623, 6772787, 20318361]

約数ペア:

[(1, 20318361), (3, 6772787), (7, 2902623), (21, 967541), (23, 883407), (31, 655431), (59, 344379), (69, 294469), (93, 218477), (161, 126201), (177, 114793), (217, 93633), (413, 49197), (483, 42067), (529, 38409), (651, 31211), (713, 28497), (1239, 16399), (1357, 14973), (1587, 12803), (1829, 11109), (2139, 9499), (3703, 5487), (4071, 4991)]