21664965

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{8971}}^1$

素因数の和:9009

約数の個数: 32

約数和(自身を含む): 41342976

約数和(自身を除く): 19678011

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 105, 115, 161, 345, 483, 805, 2415, 8971, 26913, 44855, 62797, 134565, 188391, 206333, 313985, 618999, 941955, 1031665, 1444331, 3094995, 4332993, 7221655, 21664965]

約数ペア:

[(1, 21664965), (3, 7221655), (5, 4332993), (7, 3094995), (15, 1444331), (21, 1031665), (23, 941955), (35, 618999), (69, 313985), (105, 206333), (115, 188391), (161, 134565), (345, 62797), (483, 44855), (805, 26913), (2415, 8971)]