201978189

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{168737}}^1$

素因数の和:168769

約数の個数: 24

約数和(自身を含む): 350975040

約数和(自身を除く): 148996851

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 168737, 506211, 1181159, 1518633, 3206003, 3543477, 9618009, 10630431, 22442021, 28854027, 67326063, 201978189]

約数ペア:

[(1, 201978189), (3, 67326063), (7, 28854027), (9, 22442021), (19, 10630431), (21, 9618009), (57, 3543477), (63, 3206003), (133, 1518633), (171, 1181159), (399, 506211), (1197, 168737)]