21046001990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{5222333}}^1$

素因数の和:5222384

約数の個数: 32

約数和(自身を含む): 42112901376

約数和(自身を除く): 21066899386

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 5222333, 10444666, 26111665, 52223330, 67890329, 135780658, 161892323, 323784646, 339451645, 678903290, 809461615, 1618923230, 2104600199, 4209200398, 10523000995, 21046001990]

約数ペア:

[(1, 21046001990), (2, 10523000995), (5, 4209200398), (10, 2104600199), (13, 1618923230), (26, 809461615), (31, 678903290), (62, 339451645), (65, 323784646), (130, 161892323), (155, 135780658), (310, 67890329), (403, 52223330), (806, 26111665), (2015, 10444666), (4030, 5222333)]