21709254

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{1801}}^1$

素因数の和:1861

約数の個数: 48

約数和(自身を含む): 51767856

約数和(自身を除く): 30058602

約数列:

[1, 2, 3, 6, 7, 14, 21, 41, 42, 49, 82, 98, 123, 147, 246, 287, 294, 574, 861, 1722, 1801, 2009, 3602, 4018, 5403, 6027, 10806, 12054, 12607, 25214, 37821, 73841, 75642, 88249, 147682, 176498, 221523, 264747, 443046, 516887, 529494, 1033774, 1550661, 3101322, 3618209, 7236418, 10854627, 21709254]

約数ペア:

[(1, 21709254), (2, 10854627), (3, 7236418), (6, 3618209), (7, 3101322), (14, 1550661), (21, 1033774), (41, 529494), (42, 516887), (49, 443046), (82, 264747), (98, 221523), (123, 176498), (147, 147682), (246, 88249), (287, 75642), (294, 73841), (574, 37821), (861, 25214), (1722, 12607), (1801, 12054), (2009, 10806), (3602, 6027), (4018, 5403)]