20843748

素因数分解:

$2^2\times 3^2\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:281

約数の個数: 72

約数和(自身を含む): 54792192

約数和(自身を除く): 33948444

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 47, 94, 97, 127, 141, 188, 194, 254, 282, 291, 381, 388, 423, 508, 564, 582, 762, 846, 873, 1143, 1164, 1524, 1692, 1746, 2286, 3492, 4559, 4572, 5969, 9118, 11938, 12319, 13677, 17907, 18236, 23876, 24638, 27354, 35814, 36957, 41031, 49276, 53721, 54708, 71628, 73914, 82062, 107442, 110871, 147828, 164124, 214884, 221742, 443484, 578993, 1157986, 1736979, 2315972, 3473958, 5210937, 6947916, 10421874, 20843748]

約数ペア:

[(1, 20843748), (2, 10421874), (3, 6947916), (4, 5210937), (6, 3473958), (9, 2315972), (12, 1736979), (18, 1157986), (36, 578993), (47, 443484), (94, 221742), (97, 214884), (127, 164124), (141, 147828), (188, 110871), (194, 107442), (254, 82062), (282, 73914), (291, 71628), (381, 54708), (388, 53721), (423, 49276), (508, 41031), (564, 36957), (582, 35814), (762, 27354), (846, 24638), (873, 23876), (1143, 18236), (1164, 17907), (1524, 13677), (1692, 12319), (1746, 11938), (2286, 9118), (3492, 5969), (4559, 4572)]