2121969995

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{613}}^1\times {\mathrm{971}}^1$

素因数の和:1643

約数の個数: 32

約数和(自身を含む): 2750091264

約数和(自身を除く): 628121269

約数列:

[1, 5, 23, 31, 115, 155, 613, 713, 971, 3065, 3565, 4855, 14099, 19003, 22333, 30101, 70495, 95015, 111665, 150505, 437069, 595223, 692323, 2185345, 2976115, 3461615, 13690129, 18451913, 68450645, 92259565, 424393999, 2121969995]

約数ペア:

[(1, 2121969995), (5, 424393999), (23, 92259565), (31, 68450645), (115, 18451913), (155, 13690129), (613, 3461615), (713, 2976115), (971, 2185345), (3065, 692323), (3565, 595223), (4855, 437069), (14099, 150505), (19003, 111665), (22333, 95015), (30101, 70495)]