21019328

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{409}}^1$

素因数の和:505

約数の個数: 56

約数和(自身を含む): 46238160

約数和(自身を除く): 25218832

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 73, 88, 146, 176, 292, 352, 409, 584, 704, 803, 818, 1168, 1606, 1636, 2336, 3212, 3272, 4499, 4672, 6424, 6544, 8998, 12848, 13088, 17996, 25696, 26176, 29857, 35992, 51392, 59714, 71984, 119428, 143968, 238856, 287936, 328427, 477712, 656854, 955424, 1313708, 1910848, 2627416, 5254832, 10509664, 21019328]

約数ペア:

[(1, 21019328), (2, 10509664), (4, 5254832), (8, 2627416), (11, 1910848), (16, 1313708), (22, 955424), (32, 656854), (44, 477712), (64, 328427), (73, 287936), (88, 238856), (146, 143968), (176, 119428), (292, 71984), (352, 59714), (409, 51392), (584, 35992), (704, 29857), (803, 26176), (818, 25696), (1168, 17996), (1606, 13088), (1636, 12848), (2336, 8998), (3212, 6544), (3272, 6424), (4499, 4672)]