20787786

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{20261}}^1$

素因数の和:20291

約数の個数: 32

約数和(自身を含む): 48628800

約数和(自身を除く): 27841014

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 114, 171, 342, 513, 1026, 20261, 40522, 60783, 121566, 182349, 364698, 384959, 547047, 769918, 1094094, 1154877, 2309754, 3464631, 6929262, 10393893, 20787786]

約数ペア:

[(1, 20787786), (2, 10393893), (3, 6929262), (6, 3464631), (9, 2309754), (18, 1154877), (19, 1094094), (27, 769918), (38, 547047), (54, 384959), (57, 364698), (114, 182349), (171, 121566), (342, 60783), (513, 40522), (1026, 20261)]