20463478

素因数分解:

$2^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1$

素因数の和:277

約数の個数: 48

約数和(自身を含む): 38561184

約数和(自身を除く): 18097706

約数列:

[1, 2, 7, 14, 17, 34, 49, 71, 98, 119, 142, 173, 238, 346, 497, 833, 994, 1207, 1211, 1666, 2414, 2422, 2941, 3479, 5882, 6958, 8449, 8477, 12283, 16898, 16954, 20587, 24566, 41174, 59143, 85981, 118286, 144109, 171962, 208811, 288218, 417622, 601867, 1203734, 1461677, 2923354, 10231739, 20463478]

約数ペア:

[(1, 20463478), (2, 10231739), (7, 2923354), (14, 1461677), (17, 1203734), (34, 601867), (49, 417622), (71, 288218), (98, 208811), (119, 171962), (142, 144109), (173, 118286), (238, 85981), (346, 59143), (497, 41174), (833, 24566), (994, 20587), (1207, 16954), (1211, 16898), (1666, 12283), (2414, 8477), (2422, 8449), (2941, 6958), (3479, 5882)]