21873129

素因数分解:

$3^1\times {\mathrm{59}}^1\times {\mathrm{191}}^1\times {\mathrm{647}}^1$

素因数の和:900

約数の個数: 16

約数和(自身を含む): 29859840

約数和(自身を除く): 7986711

約数列:

[1, 3, 59, 177, 191, 573, 647, 1941, 11269, 33807, 38173, 114519, 123577, 370731, 7291043, 21873129]

約数ペア:

[(1, 21873129), (3, 7291043), (59, 370731), (177, 123577), (191, 114519), (573, 38173), (647, 33807), (1941, 11269)]