21905176

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{683}}^1$

素因数の和:919

約数の個数: 32

約数和(自身を含む): 43502400

約数和(自身を除く): 21597224

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 211, 422, 683, 844, 1366, 1688, 2732, 4009, 5464, 8018, 12977, 16036, 25954, 32072, 51908, 103816, 144113, 288226, 576452, 1152904, 2738147, 5476294, 10952588, 21905176]

約数ペア:

[(1, 21905176), (2, 10952588), (4, 5476294), (8, 2738147), (19, 1152904), (38, 576452), (76, 288226), (152, 144113), (211, 103816), (422, 51908), (683, 32072), (844, 25954), (1366, 16036), (1688, 12977), (2732, 8018), (4009, 5464)]