28291718

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{419}}^1$

素因数の和:501

約数の個数: 48

約数和(自身を含む): 54295920

約数和(自身を除く): 26004202

約数列:

[1, 2, 7, 13, 14, 26, 49, 53, 91, 98, 106, 182, 371, 419, 637, 689, 742, 838, 1274, 1378, 2597, 2933, 4823, 5194, 5447, 5866, 9646, 10894, 20531, 22207, 33761, 38129, 41062, 44414, 67522, 76258, 155449, 266903, 288691, 310898, 533806, 577382, 1088143, 2020837, 2176286, 4041674, 14145859, 28291718]

約数ペア:

[(1, 28291718), (2, 14145859), (7, 4041674), (13, 2176286), (14, 2020837), (26, 1088143), (49, 577382), (53, 533806), (91, 310898), (98, 288691), (106, 266903), (182, 155449), (371, 76258), (419, 67522), (637, 44414), (689, 41062), (742, 38129), (838, 33761), (1274, 22207), (1378, 20531), (2597, 10894), (2933, 9646), (4823, 5866), (5194, 5447)]