21584456

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{673}}^1$

素因数の和:909

約数の個数: 32

約数和(自身を含む): 42866400

約数和(自身を除く): 21281944

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 211, 422, 673, 844, 1346, 1688, 2692, 4009, 5384, 8018, 12787, 16036, 25574, 32072, 51148, 102296, 142003, 284006, 568012, 1136024, 2698057, 5396114, 10792228, 21584456]

約数ペア:

[(1, 21584456), (2, 10792228), (4, 5396114), (8, 2698057), (19, 1136024), (38, 568012), (76, 284006), (152, 142003), (211, 102296), (422, 51148), (673, 32072), (844, 25574), (1346, 16036), (1688, 12787), (2692, 8018), (4009, 5384)]