20408136

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{367}}^1$

素因数の和:714

約数の個数: 64

約数和(自身を含む): 58644480

約数和(自身を除く): 38236344

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 331, 367, 662, 734, 993, 1101, 1324, 1468, 1986, 2202, 2317, 2569, 2648, 2936, 3972, 4404, 4634, 5138, 6951, 7707, 7944, 8808, 9268, 10276, 13902, 15414, 18536, 20552, 27804, 30828, 55608, 61656, 121477, 242954, 364431, 485908, 728862, 850339, 971816, 1457724, 1700678, 2551017, 2915448, 3401356, 5102034, 6802712, 10204068, 20408136]

約数ペア:

[(1, 20408136), (2, 10204068), (3, 6802712), (4, 5102034), (6, 3401356), (7, 2915448), (8, 2551017), (12, 1700678), (14, 1457724), (21, 971816), (24, 850339), (28, 728862), (42, 485908), (56, 364431), (84, 242954), (168, 121477), (331, 61656), (367, 55608), (662, 30828), (734, 27804), (993, 20552), (1101, 18536), (1324, 15414), (1468, 13902), (1986, 10276), (2202, 9268), (2317, 8808), (2569, 7944), (2648, 7707), (2936, 6951), (3972, 5138), (4404, 4634)]