21237888

素因数分解:

$2^7\times 3^1\times 7^1\times {\mathrm{7901}}^1$

素因数の和:7925

約数の個数: 64

約数和(自身を含む): 64480320

約数和(自身を除く): 43242432

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 84, 96, 112, 128, 168, 192, 224, 336, 384, 448, 672, 896, 1344, 2688, 7901, 15802, 23703, 31604, 47406, 55307, 63208, 94812, 110614, 126416, 165921, 189624, 221228, 252832, 331842, 379248, 442456, 505664, 663684, 758496, 884912, 1011328, 1327368, 1516992, 1769824, 2654736, 3033984, 3539648, 5309472, 7079296, 10618944, 21237888]

約数ペア:

[(1, 21237888), (2, 10618944), (3, 7079296), (4, 5309472), (6, 3539648), (7, 3033984), (8, 2654736), (12, 1769824), (14, 1516992), (16, 1327368), (21, 1011328), (24, 884912), (28, 758496), (32, 663684), (42, 505664), (48, 442456), (56, 379248), (64, 331842), (84, 252832), (96, 221228), (112, 189624), (128, 165921), (168, 126416), (192, 110614), (224, 94812), (336, 63208), (384, 55307), (448, 47406), (672, 31604), (896, 23703), (1344, 15802), (2688, 7901)]