19782832

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{283}}^1$

素因数の和:565

約数の個数: 40

約数和(自身を含む): 40885776

約数和(自身を除く): 21102944

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 257, 272, 283, 514, 566, 1028, 1132, 2056, 2264, 4112, 4369, 4528, 4811, 8738, 9622, 17476, 19244, 34952, 38488, 69904, 72731, 76976, 145462, 290924, 581848, 1163696, 1236427, 2472854, 4945708, 9891416, 19782832]

約数ペア:

[(1, 19782832), (2, 9891416), (4, 4945708), (8, 2472854), (16, 1236427), (17, 1163696), (34, 581848), (68, 290924), (136, 145462), (257, 76976), (272, 72731), (283, 69904), (514, 38488), (566, 34952), (1028, 19244), (1132, 17476), (2056, 9622), (2264, 8738), (4112, 4811), (4369, 4528)]