221594652

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{257}}^1\times {\mathrm{557}}^1$

素因数の和:867

約数の個数: 72

約数和(自身を含む): 576431856

約数和(自身を除く): 354837204

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 257, 258, 387, 514, 516, 557, 771, 774, 1028, 1114, 1542, 1548, 1671, 2228, 2313, 3084, 3342, 4626, 5013, 6684, 9252, 10026, 11051, 20052, 22102, 23951, 33153, 44204, 47902, 66306, 71853, 95804, 99459, 132612, 143149, 143706, 198918, 215559, 286298, 287412, 397836, 429447, 431118, 572596, 858894, 862236, 1288341, 1717788, 2576682, 5153364, 6155407, 12310814, 18466221, 24621628, 36932442, 55398663, 73864884, 110797326, 221594652]

約数ペア:

[(1, 221594652), (2, 110797326), (3, 73864884), (4, 55398663), (6, 36932442), (9, 24621628), (12, 18466221), (18, 12310814), (36, 6155407), (43, 5153364), (86, 2576682), (129, 1717788), (172, 1288341), (257, 862236), (258, 858894), (387, 572596), (514, 431118), (516, 429447), (557, 397836), (771, 287412), (774, 286298), (1028, 215559), (1114, 198918), (1542, 143706), (1548, 143149), (1671, 132612), (2228, 99459), (2313, 95804), (3084, 71853), (3342, 66306), (4626, 47902), (5013, 44204), (6684, 33153), (9252, 23951), (10026, 22102), (11051, 20052)]