21067890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{8461}}^1$

素因数の和:8554

約数の個数: 32

約数和(自身を含む): 51178176

約数和(自身を除く): 30110286

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 83, 166, 249, 415, 498, 830, 1245, 2490, 8461, 16922, 25383, 42305, 50766, 84610, 126915, 253830, 702263, 1404526, 2106789, 3511315, 4213578, 7022630, 10533945, 21067890]

約数ペア:

[(1, 21067890), (2, 10533945), (3, 7022630), (5, 4213578), (6, 3511315), (10, 2106789), (15, 1404526), (30, 702263), (83, 253830), (166, 126915), (249, 84610), (415, 50766), (498, 42305), (830, 25383), (1245, 16922), (2490, 8461)]