21806470

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{191}}^1\times {\mathrm{233}}^1$

素因数の和:445

約数の個数: 48

約数和(自身を含む): 46096128

約数和(自身を除く): 24289658

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 191, 233, 245, 382, 466, 490, 955, 1165, 1337, 1631, 1910, 2330, 2674, 3262, 6685, 8155, 9359, 11417, 13370, 16310, 18718, 22834, 44503, 46795, 57085, 89006, 93590, 114170, 222515, 311521, 445030, 623042, 1557605, 2180647, 3115210, 4361294, 10903235, 21806470]

約数ペア:

[(1, 21806470), (2, 10903235), (5, 4361294), (7, 3115210), (10, 2180647), (14, 1557605), (35, 623042), (49, 445030), (70, 311521), (98, 222515), (191, 114170), (233, 93590), (245, 89006), (382, 57085), (466, 46795), (490, 44503), (955, 22834), (1165, 18718), (1337, 16310), (1631, 13370), (1910, 11417), (2330, 9359), (2674, 8155), (3262, 6685)]