20695768

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{821}}^1$

素因数の和:987

約数の個数: 32

約数和(自身を含む): 40836960

約数和(自身を除く): 20141192

約数列:

[1, 2, 4, 8, 23, 46, 92, 137, 184, 274, 548, 821, 1096, 1642, 3151, 3284, 6302, 6568, 12604, 18883, 25208, 37766, 75532, 112477, 151064, 224954, 449908, 899816, 2586971, 5173942, 10347884, 20695768]

約数ペア:

[(1, 20695768), (2, 10347884), (4, 5173942), (8, 2586971), (23, 899816), (46, 449908), (92, 224954), (137, 151064), (184, 112477), (274, 75532), (548, 37766), (821, 25208), (1096, 18883), (1642, 12604), (3151, 6568), (3284, 6302)]