21000252657

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1\times {\mathrm{9749}}^1$

素因数の和:10041

約数の個数: 32

約数和(自身を含む): 29016000000

約数和(自身を除く): 8015747343

約数列:

[1, 3, 61, 79, 149, 183, 237, 447, 4819, 9089, 9749, 11771, 14457, 27267, 29247, 35313, 594689, 718031, 770171, 1452601, 1784067, 2154093, 2310513, 4357803, 46980431, 88608661, 114755479, 140941293, 265825983, 344266437, 7000084219, 21000252657]

約数ペア:

[(1, 21000252657), (3, 7000084219), (61, 344266437), (79, 265825983), (149, 140941293), (183, 114755479), (237, 88608661), (447, 46980431), (4819, 4357803), (9089, 2310513), (9749, 2154093), (11771, 1784067), (14457, 1452601), (27267, 770171), (29247, 718031), (35313, 594689)]