20781354963

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{503}}^1\times {\mathrm{587}}^1\times {\mathrm{809}}^1$

素因数の和:1931

約数の個数: 32

約数和(自身を含む): 28805414400

約数和(自身を除く): 8024059437

約数列:

[1, 3, 29, 87, 503, 587, 809, 1509, 1761, 2427, 14587, 17023, 23461, 43761, 51069, 70383, 295261, 406927, 474883, 885783, 1220781, 1424649, 8562569, 11800883, 13771607, 25687707, 35402649, 41314821, 238866149, 716598447, 6927118321, 20781354963]

約数ペア:

[(1, 20781354963), (3, 6927118321), (29, 716598447), (87, 238866149), (503, 41314821), (587, 35402649), (809, 25687707), (1509, 13771607), (1761, 11800883), (2427, 8562569), (14587, 1424649), (17023, 1220781), (23461, 885783), (43761, 474883), (51069, 406927), (70383, 295261)]