20522187

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4721}}^1$

素因数の和:4760

約数の個数: 32

約数和(自身を含む): 36264960

約数和(自身を除く): 15742773

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 161, 189, 207, 483, 621, 1449, 4347, 4721, 14163, 33047, 42489, 99141, 108583, 127467, 297423, 325749, 760081, 892269, 977247, 2280243, 2931741, 6840729, 20522187]

約数ペア:

[(1, 20522187), (3, 6840729), (7, 2931741), (9, 2280243), (21, 977247), (23, 892269), (27, 760081), (63, 325749), (69, 297423), (161, 127467), (189, 108583), (207, 99141), (483, 42489), (621, 33047), (1449, 14163), (4347, 4721)]