221497164

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{878957}}^1$

素因数の和:878974

約数の個数: 36

約数和(自身を含む): 639881424

約数和(自身を除く): 418384260

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 878957, 1757914, 2636871, 3515828, 5273742, 6152699, 7910613, 10547484, 12305398, 15821226, 18458097, 24610796, 31642452, 36916194, 55374291, 73832388, 110748582, 221497164]

約数ペア:

[(1, 221497164), (2, 110748582), (3, 73832388), (4, 55374291), (6, 36916194), (7, 31642452), (9, 24610796), (12, 18458097), (14, 15821226), (18, 12305398), (21, 10547484), (28, 7910613), (36, 6152699), (42, 5273742), (63, 3515828), (84, 2636871), (126, 1757914), (252, 878957)]