21634912

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{397}}^1$

素因数の和:551

約数の個数: 48

約数和(自身を含む): 46336752

約数和(自身を除く): 24701840

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 131, 208, 262, 397, 416, 524, 794, 1048, 1588, 1703, 2096, 3176, 3406, 4192, 5161, 6352, 6812, 10322, 12704, 13624, 20644, 27248, 41288, 52007, 54496, 82576, 104014, 165152, 208028, 416056, 676091, 832112, 1352182, 1664224, 2704364, 5408728, 10817456, 21634912]

約数ペア:

[(1, 21634912), (2, 10817456), (4, 5408728), (8, 2704364), (13, 1664224), (16, 1352182), (26, 832112), (32, 676091), (52, 416056), (104, 208028), (131, 165152), (208, 104014), (262, 82576), (397, 54496), (416, 52007), (524, 41288), (794, 27248), (1048, 20644), (1588, 13624), (1703, 12704), (2096, 10322), (3176, 6812), (3406, 6352), (4192, 5161)]