21182986

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1$

素因数の和:331

約数の個数: 48

約数和(自身を含む): 39070080

約数和(自身を除く): 17887094

約数列:

[1, 2, 11, 17, 19, 22, 34, 38, 121, 187, 209, 242, 271, 323, 374, 418, 542, 646, 2057, 2299, 2981, 3553, 4114, 4598, 4607, 5149, 5962, 7106, 9214, 10298, 32791, 39083, 50677, 56639, 65582, 78166, 87533, 101354, 113278, 175066, 557447, 623029, 962863, 1114894, 1246058, 1925726, 10591493, 21182986]

約数ペア:

[(1, 21182986), (2, 10591493), (11, 1925726), (17, 1246058), (19, 1114894), (22, 962863), (34, 623029), (38, 557447), (121, 175066), (187, 113278), (209, 101354), (242, 87533), (271, 78166), (323, 65582), (374, 56639), (418, 50677), (542, 39083), (646, 32791), (2057, 10298), (2299, 9214), (2981, 7106), (3553, 5962), (4114, 5149), (4598, 4607)]