20248515

素因数分解:

$3^3\times 5^1\times 7^2\times {\mathrm{3061}}^1$

素因数の和:3089

約数の個数: 48

約数和(自身を含む): 41888160

約数和(自身を除く): 21639645

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 105, 135, 147, 189, 245, 315, 441, 735, 945, 1323, 2205, 3061, 6615, 9183, 15305, 21427, 27549, 45915, 64281, 82647, 107135, 137745, 149989, 192843, 321405, 413235, 449967, 578529, 749945, 964215, 1349901, 2249835, 2892645, 4049703, 6749505, 20248515]

約数ペア:

[(1, 20248515), (3, 6749505), (5, 4049703), (7, 2892645), (9, 2249835), (15, 1349901), (21, 964215), (27, 749945), (35, 578529), (45, 449967), (49, 413235), (63, 321405), (105, 192843), (135, 149989), (147, 137745), (189, 107135), (245, 82647), (315, 64281), (441, 45915), (735, 27549), (945, 21427), (1323, 15305), (2205, 9183), (3061, 6615)]