20809386

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{241}}^1$

素因数の和:309

約数の個数: 80

約数和(自身を含む): 51653448

約数和(自身を除く): 30844062

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 41, 54, 78, 81, 82, 117, 123, 162, 234, 241, 246, 351, 369, 482, 533, 702, 723, 738, 1053, 1066, 1107, 1446, 1599, 2106, 2169, 2214, 3133, 3198, 3321, 4338, 4797, 6266, 6507, 6642, 9399, 9594, 9881, 13014, 14391, 18798, 19521, 19762, 28197, 28782, 29643, 39042, 43173, 56394, 59286, 84591, 86346, 88929, 128453, 169182, 177858, 253773, 256906, 266787, 385359, 507546, 533574, 770718, 800361, 1156077, 1600722, 2312154, 3468231, 6936462, 10404693, 20809386]

約数ペア:

[(1, 20809386), (2, 10404693), (3, 6936462), (6, 3468231), (9, 2312154), (13, 1600722), (18, 1156077), (26, 800361), (27, 770718), (39, 533574), (41, 507546), (54, 385359), (78, 266787), (81, 256906), (82, 253773), (117, 177858), (123, 169182), (162, 128453), (234, 88929), (241, 86346), (246, 84591), (351, 59286), (369, 56394), (482, 43173), (533, 39042), (702, 29643), (723, 28782), (738, 28197), (1053, 19762), (1066, 19521), (1107, 18798), (1446, 14391), (1599, 13014), (2106, 9881), (2169, 9594), (2214, 9399), (3133, 6642), (3198, 6507), (3321, 6266), (4338, 4797)]