19551904

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{283}}^1$

素因数の和:437

約数の個数: 48

約数和(自身を含む): 41223168

約数和(自身を除く): 21671264

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 127, 136, 254, 272, 283, 508, 544, 566, 1016, 1132, 2032, 2159, 2264, 4064, 4318, 4528, 4811, 8636, 9056, 9622, 17272, 19244, 34544, 35941, 38488, 69088, 71882, 76976, 143764, 153952, 287528, 575056, 610997, 1150112, 1221994, 2443988, 4887976, 9775952, 19551904]

約数ペア:

[(1, 19551904), (2, 9775952), (4, 4887976), (8, 2443988), (16, 1221994), (17, 1150112), (32, 610997), (34, 575056), (68, 287528), (127, 153952), (136, 143764), (254, 76976), (272, 71882), (283, 69088), (508, 38488), (544, 35941), (566, 34544), (1016, 19244), (1132, 17272), (2032, 9622), (2159, 9056), (2264, 8636), (4064, 4811), (4318, 4528)]