221420052

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{878651}}^1$

素因数の和:878668

約数の個数: 36

約数和(自身を含む): 639658656

約数和(自身を除く): 418238604

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 878651, 1757302, 2635953, 3514604, 5271906, 6150557, 7907859, 10543812, 12301114, 15815718, 18451671, 24602228, 31631436, 36903342, 55355013, 73806684, 110710026, 221420052]

約数ペア:

[(1, 221420052), (2, 110710026), (3, 73806684), (4, 55355013), (6, 36903342), (7, 31631436), (9, 24602228), (12, 18451671), (14, 15815718), (18, 12301114), (21, 10543812), (28, 7907859), (36, 6150557), (42, 5271906), (63, 3514604), (84, 2635953), (126, 1757302), (252, 878651)]