21164624

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1049}}^1$

素因数の和:1167

約数の個数: 40

約数和(自身を含む): 44658600

約数和(自身を除く): 23493976

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 97, 104, 194, 208, 388, 776, 1049, 1261, 1552, 2098, 2522, 4196, 5044, 8392, 10088, 13637, 16784, 20176, 27274, 54548, 101753, 109096, 203506, 218192, 407012, 814024, 1322789, 1628048, 2645578, 5291156, 10582312, 21164624]

約数ペア:

[(1, 21164624), (2, 10582312), (4, 5291156), (8, 2645578), (13, 1628048), (16, 1322789), (26, 814024), (52, 407012), (97, 218192), (104, 203506), (194, 109096), (208, 101753), (388, 54548), (776, 27274), (1049, 20176), (1261, 16784), (1552, 13637), (2098, 10088), (2522, 8392), (4196, 5044)]