20990934

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{499}}^1$

素因数の和:570

約数の個数: 64

約数和(自身を含む): 50400000

約数和(自身を除く): 29409066

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 41, 54, 57, 82, 114, 123, 171, 246, 342, 369, 499, 513, 738, 779, 998, 1026, 1107, 1497, 1558, 2214, 2337, 2994, 4491, 4674, 7011, 8982, 9481, 13473, 14022, 18962, 20459, 21033, 26946, 28443, 40918, 42066, 56886, 61377, 85329, 122754, 170658, 184131, 255987, 368262, 388721, 511974, 552393, 777442, 1104786, 1166163, 2332326, 3498489, 6996978, 10495467, 20990934]

約数ペア:

[(1, 20990934), (2, 10495467), (3, 6996978), (6, 3498489), (9, 2332326), (18, 1166163), (19, 1104786), (27, 777442), (38, 552393), (41, 511974), (54, 388721), (57, 368262), (82, 255987), (114, 184131), (123, 170658), (171, 122754), (246, 85329), (342, 61377), (369, 56886), (499, 42066), (513, 40918), (738, 28443), (779, 26946), (998, 21033), (1026, 20459), (1107, 18962), (1497, 14022), (1558, 13473), (2214, 9481), (2337, 8982), (2994, 7011), (4491, 4674)]