18187904

素因数分解:

$2^7\times 7^1\times {\mathrm{53}}^1\times {\mathrm{383}}^1$

素因数の和:457

約数の個数: 64

約数和(自身を含む): 42301440

約数和(自身を除く): 24113536

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 53, 56, 64, 106, 112, 128, 212, 224, 371, 383, 424, 448, 742, 766, 848, 896, 1484, 1532, 1696, 2681, 2968, 3064, 3392, 5362, 5936, 6128, 6784, 10724, 11872, 12256, 20299, 21448, 23744, 24512, 40598, 42896, 47488, 49024, 81196, 85792, 142093, 162392, 171584, 284186, 324784, 343168, 568372, 649568, 1136744, 1299136, 2273488, 2598272, 4546976, 9093952, 18187904]

約数ペア:

[(1, 18187904), (2, 9093952), (4, 4546976), (7, 2598272), (8, 2273488), (14, 1299136), (16, 1136744), (28, 649568), (32, 568372), (53, 343168), (56, 324784), (64, 284186), (106, 171584), (112, 162392), (128, 142093), (212, 85792), (224, 81196), (371, 49024), (383, 47488), (424, 42896), (448, 40598), (742, 24512), (766, 23744), (848, 21448), (896, 20299), (1484, 12256), (1532, 11872), (1696, 10724), (2681, 6784), (2968, 6128), (3064, 5936), (3392, 5362)]