20931732

素因数分解:

$2^2\times 3^2\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:285

約数の個数: 72

約数和(自身を含む): 55036800

約数和(自身を除く): 34105068

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 47, 89, 94, 139, 141, 178, 188, 267, 278, 282, 356, 417, 423, 534, 556, 564, 801, 834, 846, 1068, 1251, 1602, 1668, 1692, 2502, 3204, 4183, 5004, 6533, 8366, 12371, 12549, 13066, 16732, 19599, 24742, 25098, 26132, 37113, 37647, 39198, 49484, 50196, 58797, 74226, 75294, 78396, 111339, 117594, 148452, 150588, 222678, 235188, 445356, 581437, 1162874, 1744311, 2325748, 3488622, 5232933, 6977244, 10465866, 20931732]

約数ペア:

[(1, 20931732), (2, 10465866), (3, 6977244), (4, 5232933), (6, 3488622), (9, 2325748), (12, 1744311), (18, 1162874), (36, 581437), (47, 445356), (89, 235188), (94, 222678), (139, 150588), (141, 148452), (178, 117594), (188, 111339), (267, 78396), (278, 75294), (282, 74226), (356, 58797), (417, 50196), (423, 49484), (534, 39198), (556, 37647), (564, 37113), (801, 26132), (834, 25098), (846, 24742), (1068, 19599), (1251, 16732), (1602, 13066), (1668, 12549), (1692, 12371), (2502, 8366), (3204, 6533), (4183, 5004)]