21167772681

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{257713}}^1$

素因数の和:257877

約数の個数: 32

約数和(自身を含む): 32657518080

約数和(自身を除く): 11489745399

約数列:

[1, 3, 11, 19, 33, 57, 131, 209, 393, 627, 1441, 2489, 4323, 7467, 27379, 82137, 257713, 773139, 2834843, 4896547, 8504529, 14689641, 33760403, 53862017, 101281209, 161586051, 371364433, 641447657, 1114093299, 1924342971, 7055924227, 21167772681]

約数ペア:

[(1, 21167772681), (3, 7055924227), (11, 1924342971), (19, 1114093299), (33, 641447657), (57, 371364433), (131, 161586051), (209, 101281209), (393, 53862017), (627, 33760403), (1441, 14689641), (2489, 8504529), (4323, 4896547), (7467, 2834843), (27379, 773139), (82137, 257713)]