221489308

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{26737}}^1$

素因数の和:26869

約数の個数: 24

約数和(自身を含む): 411765200

約数和(自身を除く): 190275892

約数列:

[1, 2, 4, 19, 38, 76, 109, 218, 436, 2071, 4142, 8284, 26737, 53474, 106948, 508003, 1016006, 2032012, 2914333, 5828666, 11657332, 55372327, 110744654, 221489308]

約数ペア:

[(1, 221489308), (2, 110744654), (4, 55372327), (19, 11657332), (38, 5828666), (76, 2914333), (109, 2032012), (218, 1016006), (436, 508003), (2071, 106948), (4142, 53474), (8284, 26737)]