20321703

素因数分解:

$3^2\times {\mathrm{67}}^2\times {\mathrm{503}}^1$

素因数の和:643

約数の個数: 18

約数和(自身を含む): 29857464

約数和(自身を除く): 9535761

約数列:

[1, 3, 9, 67, 201, 503, 603, 1509, 4489, 4527, 13467, 33701, 40401, 101103, 303309, 2257967, 6773901, 20321703]

約数ペア:

[(1, 20321703), (3, 6773901), (9, 2257967), (67, 303309), (201, 101103), (503, 40401), (603, 33701), (1509, 13467), (4489, 4527)]