20800809

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{257}}^1$

素因数の和:326

約数の個数: 36

約数和(自身を含む): 33385716

約数和(自身を除く): 12584907

約数列:

[1, 3, 9, 17, 23, 51, 69, 153, 207, 257, 391, 529, 771, 1173, 1587, 2313, 3519, 4369, 4761, 5911, 8993, 13107, 17733, 26979, 39321, 53199, 80937, 100487, 135953, 301461, 407859, 904383, 1223577, 2311201, 6933603, 20800809]

約数ペア:

[(1, 20800809), (3, 6933603), (9, 2311201), (17, 1223577), (23, 904383), (51, 407859), (69, 301461), (153, 135953), (207, 100487), (257, 80937), (391, 53199), (529, 39321), (771, 26979), (1173, 17733), (1587, 13107), (2313, 8993), (3519, 5911), (4369, 4761)]