20558343

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:136

約数の個数: 48

約数和(自身を含む): 32465664

約数和(自身を除く): 11907321

約数列:

[1, 3, 13, 23, 39, 41, 43, 69, 123, 129, 169, 299, 507, 533, 559, 897, 943, 989, 1599, 1677, 1763, 2829, 2967, 3887, 5289, 6929, 7267, 11661, 12259, 12857, 20787, 21801, 22919, 36777, 38571, 40549, 68757, 121647, 159367, 167141, 297947, 478101, 501423, 527137, 893841, 1581411, 6852781, 20558343]

約数ペア:

[(1, 20558343), (3, 6852781), (13, 1581411), (23, 893841), (39, 527137), (41, 501423), (43, 478101), (69, 297947), (123, 167141), (129, 159367), (169, 121647), (299, 68757), (507, 40549), (533, 38571), (559, 36777), (897, 22919), (943, 21801), (989, 20787), (1599, 12857), (1677, 12259), (1763, 11661), (2829, 7267), (2967, 6929), (3887, 5289)]