20854736

素因数分解:

$2^4\times 7^1\times {\mathrm{79}}^1\times {\mathrm{2357}}^1$

素因数の和:2451

約数の個数: 40

約数和(自身を含む): 46782720

約数和(自身を除く): 25927984

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 79, 112, 158, 316, 553, 632, 1106, 1264, 2212, 2357, 4424, 4714, 8848, 9428, 16499, 18856, 32998, 37712, 65996, 131992, 186203, 263984, 372406, 744812, 1303421, 1489624, 2606842, 2979248, 5213684, 10427368, 20854736]

約数ペア:

[(1, 20854736), (2, 10427368), (4, 5213684), (7, 2979248), (8, 2606842), (14, 1489624), (16, 1303421), (28, 744812), (56, 372406), (79, 263984), (112, 186203), (158, 131992), (316, 65996), (553, 37712), (632, 32998), (1106, 18856), (1264, 16499), (2212, 9428), (2357, 8848), (4424, 4714)]