221170431

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1\times {\mathrm{409}}^1$

素因数の和:663

約数の個数: 32

約数和(自身を含む): 318816000

約数和(自身を除く): 97645569

約数列:

[1, 3, 19, 53, 57, 159, 179, 409, 537, 1007, 1227, 3021, 3401, 7771, 9487, 10203, 21677, 23313, 28461, 65031, 73211, 180253, 219633, 411863, 540759, 1235589, 1391009, 3880183, 4173027, 11640549, 73723477, 221170431]

約数ペア:

[(1, 221170431), (3, 73723477), (19, 11640549), (53, 4173027), (57, 3880183), (159, 1391009), (179, 1235589), (409, 540759), (537, 411863), (1007, 219633), (1227, 180253), (3021, 73211), (3401, 65031), (7771, 28461), (9487, 23313), (10203, 21677)]