20461329

素因数分解:

$3^5\times 7^1\times {\mathrm{23}}^1\times {\mathrm{523}}^1$

素因数の和:568

約数の個数: 48

約数和(自身を含む): 36621312

約数和(自身を除く): 16159983

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 81, 161, 189, 207, 243, 483, 523, 567, 621, 1449, 1569, 1701, 1863, 3661, 4347, 4707, 5589, 10983, 12029, 13041, 14121, 32949, 36087, 39123, 42363, 84203, 98847, 108261, 127089, 252609, 296541, 324783, 757827, 889623, 974349, 2273481, 2923047, 6820443, 20461329]

約数ペア:

[(1, 20461329), (3, 6820443), (7, 2923047), (9, 2273481), (21, 974349), (23, 889623), (27, 757827), (63, 324783), (69, 296541), (81, 252609), (161, 127089), (189, 108261), (207, 98847), (243, 84203), (483, 42363), (523, 39123), (567, 36087), (621, 32949), (1449, 14121), (1569, 13041), (1701, 12029), (1863, 10983), (3661, 5589), (4347, 4707)]