20571452

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{2237}}^1$

素因数の和:2282

約数の個数: 36

約数和(自身を含む): 41671560

約数和(自身を除く): 21100108

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 121, 209, 242, 418, 484, 836, 2237, 2299, 4474, 4598, 8948, 9196, 24607, 42503, 49214, 85006, 98428, 170012, 270677, 467533, 541354, 935066, 1082708, 1870132, 5142863, 10285726, 20571452]

約数ペア:

[(1, 20571452), (2, 10285726), (4, 5142863), (11, 1870132), (19, 1082708), (22, 935066), (38, 541354), (44, 467533), (76, 270677), (121, 170012), (209, 98428), (242, 85006), (418, 49214), (484, 42503), (836, 24607), (2237, 9196), (2299, 8948), (4474, 4598)]