21760605

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{821}}^1$

素因数の和:882

約数の個数: 48

約数和(自身を含む): 41034240

約数和(自身を除く): 19273635

約数列:

[1, 3, 5, 9, 15, 19, 31, 45, 57, 93, 95, 155, 171, 279, 285, 465, 589, 821, 855, 1395, 1767, 2463, 2945, 4105, 5301, 7389, 8835, 12315, 15599, 25451, 26505, 36945, 46797, 76353, 77995, 127255, 140391, 229059, 233985, 381765, 483569, 701955, 1145295, 1450707, 2417845, 4352121, 7253535, 21760605]

約数ペア:

[(1, 21760605), (3, 7253535), (5, 4352121), (9, 2417845), (15, 1450707), (19, 1145295), (31, 701955), (45, 483569), (57, 381765), (93, 233985), (95, 229059), (155, 140391), (171, 127255), (279, 77995), (285, 76353), (465, 46797), (589, 36945), (821, 26505), (855, 25451), (1395, 15599), (1767, 12315), (2463, 8835), (2945, 7389), (4105, 5301)]