66687663

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1\times {\mathrm{421}}^1$

素因数の和:847

約数の個数: 32

約数和(自身を含む): 107491840

約数和(自身を除く): 40804177

約数列:

[1, 3, 7, 19, 21, 57, 133, 397, 399, 421, 1191, 1263, 2779, 2947, 7543, 7999, 8337, 8841, 22629, 23997, 52801, 55993, 158403, 167137, 167979, 501411, 1169959, 3175603, 3509877, 9526809, 22229221, 66687663]

約数ペア:

[(1, 66687663), (3, 22229221), (7, 9526809), (19, 3509877), (21, 3175603), (57, 1169959), (133, 501411), (397, 167979), (399, 167137), (421, 158403), (1191, 55993), (1263, 52801), (2779, 23997), (2947, 22629), (7543, 8841), (7999, 8337)]