21039948

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1109}}^1$

素因数の和:1167

約数の個数: 72

約数和(自身を含む): 58181760

約数和(自身を除く): 37141812

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 31, 34, 36, 51, 62, 68, 93, 102, 124, 153, 186, 204, 279, 306, 372, 527, 558, 612, 1054, 1109, 1116, 1581, 2108, 2218, 3162, 3327, 4436, 4743, 6324, 6654, 9486, 9981, 13308, 18853, 18972, 19962, 34379, 37706, 39924, 56559, 68758, 75412, 103137, 113118, 137516, 169677, 206274, 226236, 309411, 339354, 412548, 584443, 618822, 678708, 1168886, 1237644, 1753329, 2337772, 3506658, 5259987, 7013316, 10519974, 21039948]

約数ペア:

[(1, 21039948), (2, 10519974), (3, 7013316), (4, 5259987), (6, 3506658), (9, 2337772), (12, 1753329), (17, 1237644), (18, 1168886), (31, 678708), (34, 618822), (36, 584443), (51, 412548), (62, 339354), (68, 309411), (93, 226236), (102, 206274), (124, 169677), (153, 137516), (186, 113118), (204, 103137), (279, 75412), (306, 68758), (372, 56559), (527, 39924), (558, 37706), (612, 34379), (1054, 19962), (1109, 18972), (1116, 18853), (1581, 13308), (2108, 9981), (2218, 9486), (3162, 6654), (3327, 6324), (4436, 4743)]