21928346

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:171

約数の個数: 48

約数和(自身を含む): 38814720

約数和(自身を除く): 16886374

約数列:

[1, 2, 11, 22, 31, 37, 62, 74, 79, 121, 158, 242, 341, 407, 682, 814, 869, 1147, 1738, 2294, 2449, 2923, 3751, 4477, 4898, 5846, 7502, 8954, 9559, 12617, 19118, 25234, 26939, 32153, 53878, 64306, 90613, 138787, 181226, 277574, 296329, 353683, 592658, 707366, 996743, 1993486, 10964173, 21928346]

約数ペア:

[(1, 21928346), (2, 10964173), (11, 1993486), (22, 996743), (31, 707366), (37, 592658), (62, 353683), (74, 296329), (79, 277574), (121, 181226), (158, 138787), (242, 90613), (341, 64306), (407, 53878), (682, 32153), (814, 26939), (869, 25234), (1147, 19118), (1738, 12617), (2294, 9559), (2449, 8954), (2923, 7502), (3751, 5846), (4477, 4898)]