21774120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{431}}^1$

素因数の和:866

約数の個数: 64

約数和(自身を含む): 65629440

約数和(自身を除く): 43855320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 421, 431, 842, 862, 1263, 1293, 1684, 1724, 2105, 2155, 2526, 2586, 3368, 3448, 4210, 4310, 5052, 5172, 6315, 6465, 8420, 8620, 10104, 10344, 12630, 12930, 16840, 17240, 25260, 25860, 50520, 51720, 181451, 362902, 544353, 725804, 907255, 1088706, 1451608, 1814510, 2177412, 2721765, 3629020, 4354824, 5443530, 7258040, 10887060, 21774120]

約数ペア:

[(1, 21774120), (2, 10887060), (3, 7258040), (4, 5443530), (5, 4354824), (6, 3629020), (8, 2721765), (10, 2177412), (12, 1814510), (15, 1451608), (20, 1088706), (24, 907255), (30, 725804), (40, 544353), (60, 362902), (120, 181451), (421, 51720), (431, 50520), (842, 25860), (862, 25260), (1263, 17240), (1293, 16840), (1684, 12930), (1724, 12630), (2105, 10344), (2155, 10104), (2526, 8620), (2586, 8420), (3368, 6465), (3448, 6315), (4210, 5172), (4310, 5052)]