20855824

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1669}}^1$

素因数の和:1759

約数の個数: 40

約数和(自身を含む): 44729280

約数和(自身を除く): 23873456

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 71, 88, 142, 176, 284, 568, 781, 1136, 1562, 1669, 3124, 3338, 6248, 6676, 12496, 13352, 18359, 26704, 36718, 73436, 118499, 146872, 236998, 293744, 473996, 947992, 1303489, 1895984, 2606978, 5213956, 10427912, 20855824]

約数ペア:

[(1, 20855824), (2, 10427912), (4, 5213956), (8, 2606978), (11, 1895984), (16, 1303489), (22, 947992), (44, 473996), (71, 293744), (88, 236998), (142, 146872), (176, 118499), (284, 73436), (568, 36718), (781, 26704), (1136, 18359), (1562, 13352), (1669, 12496), (3124, 6676), (3338, 6248)]