19666101

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 33784128

約数和(自身を除く): 14118027

約数列:

[1, 3, 7, 13, 21, 39, 41, 49, 91, 123, 147, 251, 273, 287, 533, 637, 753, 861, 1599, 1757, 1911, 2009, 3263, 3731, 5271, 6027, 9789, 10291, 11193, 12299, 22841, 26117, 30873, 36897, 68523, 72037, 78351, 133783, 159887, 216111, 401349, 479661, 504259, 936481, 1512777, 2809443, 6555367, 19666101]

約数ペア:

[(1, 19666101), (3, 6555367), (7, 2809443), (13, 1512777), (21, 936481), (39, 504259), (41, 479661), (49, 401349), (91, 216111), (123, 159887), (147, 133783), (251, 78351), (273, 72037), (287, 68523), (533, 36897), (637, 30873), (753, 26117), (861, 22841), (1599, 12299), (1757, 11193), (1911, 10291), (2009, 9789), (3263, 6027), (3731, 5271)]