19975982

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{7607}}^1$

素因数の和:7723

約数の個数: 16

約数和(自身を含む): 32592672

約数和(自身を除く): 12616690

約数列:

[1, 2, 13, 26, 101, 202, 1313, 2626, 7607, 15214, 98891, 197782, 768307, 1536614, 9987991, 19975982]

約数ペア:

[(1, 19975982), (2, 9987991), (13, 1536614), (26, 768307), (101, 197782), (202, 98891), (1313, 15214), (2626, 7607)]