21688836

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{3391}}^1$

素因数の和:3452

約数の個数: 48

約数和(自身を含む): 55845888

約数和(自身を除く): 34157052

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 41, 52, 78, 82, 123, 156, 164, 246, 492, 533, 1066, 1599, 2132, 3198, 3391, 6396, 6782, 10173, 13564, 20346, 40692, 44083, 88166, 132249, 139031, 176332, 264498, 278062, 417093, 528996, 556124, 834186, 1668372, 1807403, 3614806, 5422209, 7229612, 10844418, 21688836]

約数ペア:

[(1, 21688836), (2, 10844418), (3, 7229612), (4, 5422209), (6, 3614806), (12, 1807403), (13, 1668372), (26, 834186), (39, 556124), (41, 528996), (52, 417093), (78, 278062), (82, 264498), (123, 176332), (156, 139031), (164, 132249), (246, 88166), (492, 44083), (533, 40692), (1066, 20346), (1599, 13564), (2132, 10173), (3198, 6782), (3391, 6396)]