21064872

素因数分解:

$2^3\times 3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1231}}^1$

素因数の和:1294

約数の個数: 64

約数和(自身を含む): 56770560

約数和(自身を除く): 35705688

約数列:

[1, 2, 3, 4, 6, 8, 12, 23, 24, 31, 46, 62, 69, 92, 93, 124, 138, 184, 186, 248, 276, 372, 552, 713, 744, 1231, 1426, 2139, 2462, 2852, 3693, 4278, 4924, 5704, 7386, 8556, 9848, 14772, 17112, 28313, 29544, 38161, 56626, 76322, 84939, 113252, 114483, 152644, 169878, 226504, 228966, 305288, 339756, 457932, 679512, 877703, 915864, 1755406, 2633109, 3510812, 5266218, 7021624, 10532436, 21064872]

約数ペア:

[(1, 21064872), (2, 10532436), (3, 7021624), (4, 5266218), (6, 3510812), (8, 2633109), (12, 1755406), (23, 915864), (24, 877703), (31, 679512), (46, 457932), (62, 339756), (69, 305288), (92, 228966), (93, 226504), (124, 169878), (138, 152644), (184, 114483), (186, 113252), (248, 84939), (276, 76322), (372, 56626), (552, 38161), (713, 29544), (744, 28313), (1231, 17112), (1426, 14772), (2139, 9848), (2462, 8556), (2852, 7386), (3693, 5704), (4278, 4924)]