19984716

素因数分解:

$2^2\times 3^2\times {\mathrm{59}}^1\times {\mathrm{97}}^2$

素因数の和:263

約数の個数: 54

約数和(自身を含む): 51908220

約数和(自身を除く): 31923504

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 59, 97, 118, 177, 194, 236, 291, 354, 388, 531, 582, 708, 873, 1062, 1164, 1746, 2124, 3492, 5723, 9409, 11446, 17169, 18818, 22892, 28227, 34338, 37636, 51507, 56454, 68676, 84681, 103014, 112908, 169362, 206028, 338724, 555131, 1110262, 1665393, 2220524, 3330786, 4996179, 6661572, 9992358, 19984716]

約数ペア:

[(1, 19984716), (2, 9992358), (3, 6661572), (4, 4996179), (6, 3330786), (9, 2220524), (12, 1665393), (18, 1110262), (36, 555131), (59, 338724), (97, 206028), (118, 169362), (177, 112908), (194, 103014), (236, 84681), (291, 68676), (354, 56454), (388, 51507), (531, 37636), (582, 34338), (708, 28227), (873, 22892), (1062, 18818), (1164, 17169), (1746, 11446), (2124, 9409), (3492, 5723)]