21000337519

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{401}}^1\times {\mathrm{1361}}^1$

素因数の和:2031

約数の個数: 32

約数和(自身を含む): 25229905920

約数和(自身を除く): 4229568401

約数列:

[1, 7, 23, 161, 239, 401, 1361, 1673, 2807, 5497, 9223, 9527, 31303, 38479, 64561, 95839, 219121, 325279, 545761, 670873, 2204297, 2276953, 3820327, 7481417, 12552503, 15430079, 52369919, 87867521, 130436879, 913058153, 3000048217, 21000337519]

約数ペア:

[(1, 21000337519), (7, 3000048217), (23, 913058153), (161, 130436879), (239, 87867521), (401, 52369919), (1361, 15430079), (1673, 12552503), (2807, 7481417), (5497, 3820327), (9223, 2276953), (9527, 2204297), (31303, 670873), (38479, 545761), (64561, 325279), (95839, 219121)]