16861209

素因数分解:

$3^1\times {\mathrm{29}}^2\times {\mathrm{41}}^1\times {\mathrm{163}}^1$

素因数の和:265

約数の個数: 24

約数和(自身を含む): 23997792

約数和(自身を除く): 7136583

約数列:

[1, 3, 29, 41, 87, 123, 163, 489, 841, 1189, 2523, 3567, 4727, 6683, 14181, 20049, 34481, 103443, 137083, 193807, 411249, 581421, 5620403, 16861209]

約数ペア:

[(1, 16861209), (3, 5620403), (29, 581421), (41, 411249), (87, 193807), (123, 137083), (163, 103443), (489, 34481), (841, 20049), (1189, 14181), (2523, 6683), (3567, 4727)]