20661888

素因数分解:

$2^7\times 3^1\times {\mathrm{13}}^1\times {\mathrm{4139}}^1$

素因数の和:4169

約数の個数: 64

約数和(自身を含む): 59119200

約数和(自身を除く): 38457312

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 64, 78, 96, 104, 128, 156, 192, 208, 312, 384, 416, 624, 832, 1248, 1664, 2496, 4139, 4992, 8278, 12417, 16556, 24834, 33112, 49668, 53807, 66224, 99336, 107614, 132448, 161421, 198672, 215228, 264896, 322842, 397344, 430456, 529792, 645684, 794688, 860912, 1291368, 1589376, 1721824, 2582736, 3443648, 5165472, 6887296, 10330944, 20661888]

約数ペア:

[(1, 20661888), (2, 10330944), (3, 6887296), (4, 5165472), (6, 3443648), (8, 2582736), (12, 1721824), (13, 1589376), (16, 1291368), (24, 860912), (26, 794688), (32, 645684), (39, 529792), (48, 430456), (52, 397344), (64, 322842), (78, 264896), (96, 215228), (104, 198672), (128, 161421), (156, 132448), (192, 107614), (208, 99336), (312, 66224), (384, 53807), (416, 49668), (624, 33112), (832, 24834), (1248, 16556), (1664, 12417), (2496, 8278), (4139, 4992)]