16981888

素因数分解:

$2^7\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1723}}^1$

素因数の和:1755

約数の個数: 64

約数和(自身を含む): 42203520

約数和(自身を除く): 25221632

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 64, 77, 88, 112, 128, 154, 176, 224, 308, 352, 448, 616, 704, 896, 1232, 1408, 1723, 2464, 3446, 4928, 6892, 9856, 12061, 13784, 18953, 24122, 27568, 37906, 48244, 55136, 75812, 96488, 110272, 132671, 151624, 192976, 220544, 265342, 303248, 385952, 530684, 606496, 771904, 1061368, 1212992, 1543808, 2122736, 2425984, 4245472, 8490944, 16981888]

約数ペア:

[(1, 16981888), (2, 8490944), (4, 4245472), (7, 2425984), (8, 2122736), (11, 1543808), (14, 1212992), (16, 1061368), (22, 771904), (28, 606496), (32, 530684), (44, 385952), (56, 303248), (64, 265342), (77, 220544), (88, 192976), (112, 151624), (128, 132671), (154, 110272), (176, 96488), (224, 75812), (308, 55136), (352, 48244), (448, 37906), (616, 27568), (704, 24122), (896, 18953), (1232, 13784), (1408, 12061), (1723, 9856), (2464, 6892), (3446, 4928)]