20870874

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{331}}^1$

素因数の和:483

約数の個数: 48

約数和(自身を含む): 47234304

約数和(自身を除く): 26363430

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 113, 186, 226, 279, 331, 339, 558, 662, 678, 993, 1017, 1986, 2034, 2979, 3503, 5958, 7006, 10261, 10509, 20522, 21018, 30783, 31527, 37403, 61566, 63054, 74806, 92349, 112209, 184698, 224418, 336627, 673254, 1159493, 2318986, 3478479, 6956958, 10435437, 20870874]

約数ペア:

[(1, 20870874), (2, 10435437), (3, 6956958), (6, 3478479), (9, 2318986), (18, 1159493), (31, 673254), (62, 336627), (93, 224418), (113, 184698), (186, 112209), (226, 92349), (279, 74806), (331, 63054), (339, 61566), (558, 37403), (662, 31527), (678, 30783), (993, 21018), (1017, 20522), (1986, 10509), (2034, 10261), (2979, 7006), (3503, 5958)]