20898112

素因数分解:

$2^6\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:227

約数の個数: 56

約数和(自身を含む): 43369992

約数和(自身を除く): 22471880

約数列:

[1, 2, 4, 8, 16, 32, 53, 61, 64, 101, 106, 122, 202, 212, 244, 404, 424, 488, 808, 848, 976, 1616, 1696, 1952, 3232, 3233, 3392, 3904, 5353, 6161, 6464, 6466, 10706, 12322, 12932, 21412, 24644, 25864, 42824, 49288, 51728, 85648, 98576, 103456, 171296, 197152, 206912, 326533, 342592, 394304, 653066, 1306132, 2612264, 5224528, 10449056, 20898112]

約数ペア:

[(1, 20898112), (2, 10449056), (4, 5224528), (8, 2612264), (16, 1306132), (32, 653066), (53, 394304), (61, 342592), (64, 326533), (101, 206912), (106, 197152), (122, 171296), (202, 103456), (212, 98576), (244, 85648), (404, 51728), (424, 49288), (488, 42824), (808, 25864), (848, 24644), (976, 21412), (1616, 12932), (1696, 12322), (1952, 10706), (3232, 6466), (3233, 6464), (3392, 6161), (3904, 5353)]