21945144

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1901}}^1$

素因数の和:1960

約数の個数: 64

約数和(自身を含む): 60711840

約数和(自身を除く): 38766696

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 37, 39, 52, 74, 78, 104, 111, 148, 156, 222, 296, 312, 444, 481, 888, 962, 1443, 1901, 1924, 2886, 3802, 3848, 5703, 5772, 7604, 11406, 11544, 15208, 22812, 24713, 45624, 49426, 70337, 74139, 98852, 140674, 148278, 197704, 211011, 281348, 296556, 422022, 562696, 593112, 844044, 914381, 1688088, 1828762, 2743143, 3657524, 5486286, 7315048, 10972572, 21945144]

約数ペア:

[(1, 21945144), (2, 10972572), (3, 7315048), (4, 5486286), (6, 3657524), (8, 2743143), (12, 1828762), (13, 1688088), (24, 914381), (26, 844044), (37, 593112), (39, 562696), (52, 422022), (74, 296556), (78, 281348), (104, 211011), (111, 197704), (148, 148278), (156, 140674), (222, 98852), (296, 74139), (312, 70337), (444, 49426), (481, 45624), (888, 24713), (962, 22812), (1443, 15208), (1901, 11544), (1924, 11406), (2886, 7604), (3802, 5772), (3848, 5703)]