1721917370

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{210761}}^1$

素因数の和:210830

約数の個数: 32

約数和(自身を含む): 3338470080

約数和(自身を除く): 1616552710

約数列:

[1, 2, 5, 10, 19, 38, 43, 86, 95, 190, 215, 430, 817, 1634, 4085, 8170, 210761, 421522, 1053805, 2107610, 4004459, 8008918, 9062723, 18125446, 20022295, 40044590, 45313615, 90627230, 172191737, 344383474, 860958685, 1721917370]

約数ペア:

[(1, 1721917370), (2, 860958685), (5, 344383474), (10, 172191737), (19, 90627230), (38, 45313615), (43, 40044590), (86, 20022295), (95, 18125446), (190, 9062723), (215, 8008918), (430, 4004459), (817, 2107610), (1634, 1053805), (4085, 421522), (8170, 210761)]