18722132

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{461}}^1$

素因数の和:560

約数の個数: 48

約数和(自身を含む): 39118464

約数和(自身を除く): 20396332

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 71, 142, 143, 284, 286, 461, 572, 781, 922, 923, 1562, 1844, 1846, 3124, 3692, 5071, 5993, 10142, 10153, 11986, 20284, 20306, 23972, 32731, 40612, 65462, 65923, 130924, 131846, 263692, 360041, 425503, 720082, 851006, 1440164, 1702012, 4680533, 9361066, 18722132]

約数ペア:

[(1, 18722132), (2, 9361066), (4, 4680533), (11, 1702012), (13, 1440164), (22, 851006), (26, 720082), (44, 425503), (52, 360041), (71, 263692), (142, 131846), (143, 130924), (284, 65923), (286, 65462), (461, 40612), (572, 32731), (781, 23972), (922, 20306), (923, 20284), (1562, 11986), (1844, 10153), (1846, 10142), (3124, 5993), (3692, 5071)]