19864782

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{4261}}^1$

素因数の和:4313

約数の個数: 48

約数和(自身を含む): 50530272

約数和(自身を除く): 30665490

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 37, 42, 63, 74, 111, 126, 222, 259, 333, 518, 666, 777, 1554, 2331, 4261, 4662, 8522, 12783, 25566, 29827, 38349, 59654, 76698, 89481, 157657, 178962, 268443, 315314, 472971, 536886, 945942, 1103599, 1418913, 2207198, 2837826, 3310797, 6621594, 9932391, 19864782]

約数ペア:

[(1, 19864782), (2, 9932391), (3, 6621594), (6, 3310797), (7, 2837826), (9, 2207198), (14, 1418913), (18, 1103599), (21, 945942), (37, 536886), (42, 472971), (63, 315314), (74, 268443), (111, 178962), (126, 157657), (222, 89481), (259, 76698), (333, 59654), (518, 38349), (666, 29827), (777, 25566), (1554, 12783), (2331, 8522), (4261, 4662)]